a scannable fraud preventing coupon 10 , as best shown in fig1 - 3 , includes interconnected first panel 12 and second panel 14 . first panel 12 and second panel 14 are , preferably , constructed and manufactured from paper sheets and have a planar rectangular configuration . the panels 12 and 14 are , preferably , manufactured from 80 pound paper . this weight paper imparts sufficient rigidity and strength to the coupon 10 to permit coupon 10 to be mass produced and to be capable of being handled by numerous individuals . first panel 12 has a first surface 16 on which a plurality of spaced parallel bars 18 are imprinted or disposed for providing an image scannable by an electronic scanner ( not shown ) of a type well known in the art . the bars 18 are arrayed so as to be coded according to the requirements of the upc . upc coding permits interaction with a computer for thereby providing interpretation of the bars 18 while also permitting accurate accounting information to be maintained . second panel 14 is adhesively secured to panel 12 by peripherally disposed glue strips 20 , 22 , 24 and 26 . while glue strips 20 , 22 , 24 and 26 are disclosed , one skilled in the art will appreciate that many others means for adhesively securing and bonding first panel 12 to second panel 14 are known . similarly , while fig3 discloses that glue strips 20 , 22 , 24 and 26 are disposed on first panel 12 , one skilled in the art will appreciate that the glue strips 20 , 22 , 24 and 26 may be disposed on second panel 14 . glue strips 20 , 22 , 24 and 26 are disposed around the periphery of first panel 12 in order to bond the panels 12 and 14 together at their edges . this assures that the panels 12 and 14 may not be separated and thereby prevents unauthorized premature viewing of coded bars 18 . as best shown in fig1 and 3 , a plurality of perforations 28 are provided in second panel 14 and arrayed to define a tongue 30 integral with second panel 14 . perforations 28 thereby define a weakened web permitting tongue 30 to be severed from second panel 14 . preferably , tongue 30 has a notch 32 to permit ease of separation of tongue 30 from second panel 14 . as best shown in fig2 tongue 30 is flexibly connected to second panel 14 along fold line 34 which defines a hinge . consequently , insertion of an object or a finger ( not shown ) through notch 32 and between tongue 30 and first panel 12 causes the weakened web to be severed . tongue 30 is flexibly connected by fold line 34 to second panel 14 and may be angularly pivoted to permit viewing of bars 18 . it will be noted in fig2 that tufts 36 extend peripherally from tongue 30 after tongue 30 has been pulled upwardly and the weakened web defined by perforations 28 has been torn . similar tufts 38 extend peripherally from pocket or aperture 40 in second panel 14 . the tufts 36 and 38 are caused by the tearing of tongue 30 from second panel 14 . the tufts 36 and 38 indicate to any observer that the tongue 30 has been torn from second panel 14 and that the weakened web defined by perforations 28 has been torn . these tufts 36 and 38 irreversibly indicate , consequently , that tongue 30 has been pulled open from pocket or aperture 40 . as best shown in fig2 and 3 , a plurality of lines 42 are imprinted or disposed on first surface 44 of tongue 30 . spaced parallel lines 42 are arrayed to be generally transverse of coded bars 18 and thereby overlie bars 18 when the tongue 30 is integral with second panel 14 . a line 46 is disposed adjacent notch 32 on first surface 44 and is connected to lines 42 . lines 42 may be dark colored and arrayed to simulate bars 18 . this causes improper interpretation of the coding scheme . the image being scanned is thereby a composite of the bars 18 and the transverse lines 42 . the scanning of this image is difficult or impossible because the electronic scanning equipment is adapted for scanning only one set of bars 18 or lines 42 . consequently , this composite image , which is not generally visible to the eye but is visible to the illuminated scanning equipment , confuses the scanning equipment . when the coupon 10 has been peripherally sealed by glue strips 20 , 22 , 24 and 26 and the tongue 30 has not been severed from second panel 14 , then the lines 42 alter the image defined by coded bars 18 . coded bars 18 are scannable through either of panels 12 and 14 . without the image altering lines 42 , then the coded bars 18 could be scanned without the tongue 30 being opened . the lines 42 which overlie coded image 18 alter the image 18 and thereby disrupt scanning of the image 18 with the effect that the coded image 18 cannot be scanned until such time as the tongue 30 has been opened and pulled away from aperture 40 . while lines 42 have been disclosed as being transverse of parallel coded bars 18 , it should be obvious that the lines 42 may be angularly disposed or otherwise configured relative to the coded image 18 and still have the same effect of altering the image 18 . similarly , the lines 44 may be disposed in lines sets with two lines 42 for each of the parallel spaced line sets . as best shown in fig3 the coupon 10 may be manufactured from a single paper blank 48 which is folded along fold line 50 so that the second panel 14 overlies first panel 12 , as best shown in fig1 and 2 . the second panel 14 is merely folded along fold line 50 until it overlies and is in contact with first panel 12 . glue strips 20 , 22 , 24 and 26 maintain second panel 14 securely bonded to first panel 12 . it is frequently desirable that the coupons 10 be manufactured in strip form , as best shown in fig5 . strip 52 comprises a plurality of second panels 14 interconnected by weakened webs defined by perforations 54 . second strip 56 comprised of a plurality of first panels 12 interconnected by weakened webs defined by perforations 58 is adhesively secured to strip 52 . one skilled in the art will appreciate that the use of strips 52 and 56 permits glue strips 60 and 62 to be applied in a continous manner parallel to the longitudinal axis of the strips 52 and 56 . glue strips 64 and 66 may then be applied transverse of strips 60 and 62 and parallel to perforations 58 . this , therefore , permits efficient manufacture of numerous coupons 10 . each coupon 10 may then be severed from the joined strips 52 and 54 by tearing along perforations 54 and 58 . this permits a plurality of coupons 10 to be manufactured in strip form while also permitting the coupons 10 to be individually removed from the joined strips 52 and 56 . another embodiment of the coupon 10 is shown in figures 4 and 6 . blank 68 is used to manufacture this embodiment . a first panel 70 is integral with a second panel 72 and a third panel 74 . first panel 70 has a first surface 76 on which upc scannable image 78 , which is similar to upc scannable image 18 , is imprinted . integral second panel 72 extends from fold line 80 and is adapted for being folded along fold line 80 so as to be in an overlying relationship with first panel 70 . second panel 72 has a first surface 82 on which spaced parallel lines 84 are imprinted . panel 72 is folded so that lines 84 are transverse of image 78 when second panel 72 is secured to first panel 70 . lines 84 are similar to lines 42 of coupon 10 . transverse line 86 is connected to lines 84 . transverse line 86 is parallel to and adjacent to fold line 80 . third panel 74 is integral with first panel 70 and is foldable along fold line 88 to be overlying second panel 72 when the coupon is sealed . it will be noted in fig4 that parallel glue strips 90 and 92 are longitudinally disposed along the peripheral edges of blank 68 . strips 90 and 92 seal panel 72 to first panel 70 and third panel 74 to second panel 72 . this sealing prevents the unauthorized premature viewing of coded image 78 . similarly , lines 84 which overlie coded image 78 alter the image 78 should the coupon be scanned while second panel 72 overlies first panel 70 . preferably a tear string or opening means 94 is secured to first panel 70 first surface 76 adjacent fold line 80 . the tear string 94 permits ease in opening the coupon by merely pulling on the string 94 . image 78 may then be scanned . additionally , fold line 80 may include perforations 96 to permit easy tearing along fold line 80 by tear string 94 . the tearing of string 94 also indicates that the coupon has been opened prematurely and without authorization . as best shown in fig6 coupon 98 has a generally rectangular configuration with tear string 94 extending outwardly from one edge thereof . pulling on tear string 94 causes the coupon 98 to be severed along fold line 80 with the effect that coded image 78 may therefore be viewed and scanned . as was previously explained for coupon 10 , the tearing apart of first panel 70 and second panel 72 along fold line 80 and perforations 96 causes tufts to extend from between the perforations 96 . the tufts indicate that the coupon 98 has been prematurely opened . the use of coupons 10 and 98 is relatively simple and yet provides the retail establishment with much valuable information . the coupons 10 and / or 98 are distributed to potential customers of the retail establishment . in order for the coded images 18 and 78 to be scanned , the coupons 10 and 98 must be brought to the retail establishment . the images 18 and 78 may only be interpreted by scanners and , consequently , the scanners , which are tied into a host computer , permit the retail establishment to keep highly accurate records . the host computer permits information to be accumulated on which stores the coupons are returned to , what time of day the coupons are returned , and which scanners scanned the winning coupons . this last piece of information prevents an employee from scanning the coupons in advance and then distributing them to compatriots . should an employee attempt to separate winning coupons from the others by premature opening , scanning and sorting , then the large number of winning coupons at one scanning station in a short period of time will indicate fraud . additionally , rapid scanning of coupons for sorting purposes would also be evident and indicate fraud . it can be seen , therefore , that the coupons 10 and 98 protect the integrity of the promotional game while also permitting accurate records of the game &# 39 ; s value to be maintained . while this invention has been described as having a preferred design , it is understood that it is capable of further modifications , uses and / or adaptations of the invention following in general the principles of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains , and as may be applied to the central features herein before set forth , and fall within the scope of the invention of the limits of the appended claims .