The Farmers are cool little knives (I've got two) but won't fit into the tiny PSK's. For these tiny knives, I think a lock back or fixed blade knife is much preferred than a pen knife. I've got lots of pen knives (my grandfather was in the cutlery business) but they simply are not up to many of the tasks we ask of a knife outdoors. Also, my opinion is that knives are far better today than those of yesteryear.

Sorry Gramps, wherever you are.