Thank you John, Dick, Inland44 and Charlie-painter777 for your kind comments and critiques. I am not in your league regarding manufacturing technical information relating to Carbines and your corrections are most welcome. I have changed some of the notes on my page to reflect those corrections. I have now noted parts modification manufacturing implementation dates in a very generalized way -- the thrust of my page is, after all, Field maintenance in the 1950s and 1960s and I think the content of my page is better for those changes.

James