NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Terry Syrokosz
Date: 2021 Feb 6, 00:12 -0800
"don't serial numbers usually begin with a two-digit representation of the year of manufacture? vintage 1957 then?"
Not as far as I can tell. The ones I've tracked so far are below. I think David Pike may have nailed it with the tin in the solder. Copper without tin does not last in a marine environment (wish the last owner of my boat knew that).
If I ever do get that light to stay working I'll be happy to let everyone know!!!
serial number year
50133 1967
32978 1953
62669 1981
53446 1970
48332 1966
58833 1974 There does seem to be a pattern here. So probably early 70's
