That's an awesome collection of 41 mags. I just started buying 41's in the last 3 years, a 58, NIB 57, and a 657 MG. About 3 years ago I saw a 3 inch, one of those 150 LH's in a gunshop on Long Island. The price was about $800, and not knowing the value, passed on it. I called 2 days later and it was gone.
