Wish the 'net was around when I had my first 41. Just got a second, pristine '57, in the first 2300 made. Mr Jinks confirmed. It has Herrett grips and was evidentially stored the last 50 years in a barrel of oil. I hope to find the rest of the gear in the estate. Traded a Ruger New Single 6 for it, even. Likely my best trade ever. I found the answers to all my questions lurking here, thanks to the group. And also thanks to whoever first put the maintenance book and photos in a link.