They are however disadvantageous in that {TAIL ~ the text} of {HEAD ~ the separate stamps} is not visible which means that print has to be made to ensure that for instance the correct date is set and in that the mechanism or construction is complicated and difficult to operate 
They are however disadvantageous in that { TAIL ~ the text } of { HEAD ~ the separate stamps } is not visible which means that print has to be made to ensure that for instance the correct date is set and in that the mechanism or construction is complicated and difficult to operate
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH