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 5930-00-782-0762
NSN 5905-01-642-4201
NSN 6685-01-429-8922
NSN 6320-00-036-3688
NSN 6320-00-521-9350
NSN 6240-01-327-4021
NSN 5920-01-467-5568
NSN 5945-01-425-1326
NSN 2925-01-483-2389
NSN 5975-00-719-9793
NSN 4140-01-124-8904
NSN 6130-00-925-3926