Quote Originally Posted by bobg View Post
276xxxx and 277xxxx
War Baby page 447 lists lined out Underwood to NPM receivers.
Serial number examples used are 2,743,286 (pictured) and 2,767.294
Goes on to note that Underwood sent to NPM the following receivers:

1,500 completed delivered on Nov 18, 1943
6,000 Semi-finished on Dec 16, 1943
7,200 Partially machined on Mar 12, 1944

Total of 14,700 receivers.

Guess the question remains......
Whose barrels were they using at these times and (if) dated what would they be.