quack1 said
Bert-I’m the original poster.  Finally got the serial number for the survey- 1377209.  The “when was your Winchester made” feature on this site says 1946, but the date stamp on the bottom of the barrel is 47.  The barrel stamping is 30WCF rather than 30-30 Win. The forend wood isn’t completely flat, as I thought.  The one full length profile picture I saw when first posting showed it being flat along the bottom, which it is, but it does have a slight swell, tapering from the receiver and forend cap to a roughly 1/8″ bulge in the middle, on both sides.  Not the same as a 94 rifle forend, but certainly not like the very fat forends on post war 64’s I have seen.  The color, finish and wear of the forend do match the butt very well, and both look completely original.  If it is a replacement, it’s been on there a long time.  

Thank you for the update.  S/N 1377209 was positively manufactured in 1946 (S/N 1380733 has been verified to have been manufactured on 8/27/1946 and S/N 1397883 verified to be manufactured 11/18/1946).  It is entirely possible that S/N 1377209 was not fully assembled until sometime in 1947.

The forend you describe was the type used in the late pre-war time period, and  undoubtedly was used in the early post-war years as well.

Bert