Thanks everybody! I kinda figured the pack was some sort of knock-off. I've seen one other example of the frame on a forum somewhere, but nobody seemed to know what it was. Maybe a transition between the packboard and the lightweight pack frame?
Hey everybody - I picked up these packs at a flea market a while ago - any ideas? The field pack is about the size of a mussette bag - I'm guessing French (but marked 'US'). The pack frame is a M1952 ruck frame with two quick release buckles, like the ones on the later issue packboards, but with a cloth covering for the metal bit and a snap to keep it from quick releasing unintentionally. Anybody seen these before?