Folds to 5-1/2 x 6-3/8 inch (140 x 162mm); no. 20 envelope; eezeemount gray paperboard; used for bite wing history
NSN 5950-00-508-3325
NSN 4140-01-195-0816
NSN 5960-01-528-1147
NSN 5990-00-607-0117
NSN 6320-00-681-1324
NSN 5990-01-502-8209
NSN 6320-00-937-5625
NSN 6105-00-393-2489
NSN 5996-01-106-2763
NSN 5985-01-233-6627
NSN 6685-00-132-1175
NSN 6220-00-211-6146