{HEAD ~ The package article} 15 wherein {TAIL ~ a second disk} of the pair is fixedly attached to said unshirred portion of casing by a portion of tubular membrane which is confined together with the end of the unshirred casing portion by a casing closure means 
wherein
{ HEAD ~ The package article } 15 wherein { TAIL ~ a second disk } of the pair is fixedly attached to said unshirred portion of casing by a portion of tubular membrane which is confined together with the end of the unshirred casing portion by a casing closure means
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH