This Revelation 20ga Shotshell Carton is for a 5 pack.It is for 2-3/4" shells.The box is still flat from the maker of the box and has never had shells in it.The flap that is glued on the boxes never had glue on this one.There is the date "1962" written on the inside,also a stamp stating "Approved" on the inside and written in ink "our file copy".This is one of a number of folded flat boxes that sat many years in the Federal warehouse.