Originally Posted by BillR
Would love to know model, caliber, serial range to eg 3334XX of those not marked MP.
Those without MP are equally as important in solving the puzzle.
Bill

Bill,

Here's a little research on the Model 20 side of things. Maybe we can add to the list:

Code
Serial  MP  Cal  Shipped     BBL Addr Type
******  **  ***  **********  *************
10996   N        10/28/1926   6
1114x   N         unknown     6
1148x   ?        06/07/1927   6
11499   Y   300   unknown     6
12012   N        09/26/1927   6


OK, so only 5 guns and only 1 with 'MP'. However, smallest and largest serial numbers bound the time when these rifles were stamped. All 'shipped' dates are from Roe Clark or JC letters. The letters have only one date, and do not have a 'received from factory' date as pre-1926 rifles do. I don't have a letter for rifle 11499 with the 'MP' stamp. The 1148? rifle comes from old notes, and was lettered. So, top and bottom are 500 numbers from the stamped rifle, and the middle rifle with the letter date is only 10 or 20 away.

Regarding the barrel address type, it never dawned on me that all stamps on version M20/1926 rifles are for M99 features. They were too cheap to make a M20 stamp when they moved from Featherweight to Lightweight barrels in June of 1926.

Thanks to Brutha' olgrouser for reminding me that the later rifles have Type 6 bbl addresses (Murrays), and not '4' as I posted earlier. I dusted off my Murray's. Page 6-2 notes that the Type 6 patent dates are for M99 features.

FWIW, the shotgun in the picture above is not a Winchester M24, (made 1939-'58, only 116,000 made). Shotgun is an Ithaca, Flues model, made in 1924, by serial number reference. IIRC, the serial number to the Colt pistol was displayed a year or so ago, but I can't find the post. Is the Colt ser# available, anyone? Maybe we should all pony-up, and letter that Fluzie?