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That is where the best information is available, for sure. Here is a link to the epic topic. Member, Haggis, has unfortunately passed away. But you will likely find a serial number which is "close...

Your Colt would originally have been "Brushed Blue" finish, with well defined wheel marks and a deep luster hue. While your gun still shows some of the brushed pattern, it is subdued from light...

Would like to see full pictures.

Post-WWI Rebuild/Refinish

The technical term for 'rebuild' is Arsenal Overhaul, but very few collectors use this term. So for ease of reading and deferring to common collector jargon, 'rebuild'...

217,337 is the sequential Colt New Service serial number (S&W used assembly numbers)
68,462 is the US Army inventory Number (looks original to me)
1346 is post-production. Most likely at...