Compacts
Can be dated easily...at least some can,,mine is a 57 because its a 20th anniversary model, now this might lead you to believe Compacts came out in 37...but actually that date marks the beginning of Interstate Enginering co, Compacts were introduced soon after WW2 was over.46 I believe, this would have been the c-1, then the C-2 came out in 49 or 50 , there was no C-3, but the C-4 came out in 57, It first came out with the flat lid, ive seen it in 3 colors, green ,a blue grey, and the tan almost pinkish color mine is...