The OP was made in 1957. R.L.Wilson has some books on Colts, but he also has out a little pocketbook called "Dates of Manufacture by R.L. Wilson" which are available around most gunshows. It is copyrighted 1985 and is base on his book "THE COLT HERITAGE" published in 1979. It's a handy little pocket reference to carry around at gun shops/shows etc.. Dick
Just noticed Welcome! to the forum, your inputs are welcome any time. Dick
[This message has been edited by diamonback68 (edited 08-19-2003).]
[This message has been edited by diamonback68 (edited 08-19-2003).]