Meriden yes or no?.

[Researcher]

From my years of looking at Parker shotguns, it appears to me that there are more guns in various transition stages from pure Parker Bros. markings to pure Remington markings, than there are with pure Remington markings.

[Austin W Hogan]

As I remember, the Meriden shop was dismantled in 1938, and shipped to Ilion. It was reassembled and Ilion production began in 1939. Barrels, frames , stocks and fore ends begun in Meriden continued to be assembled and finished in Ilion.
There are two ( and maybe more) indicators of Ilion manufacture:

VH and GH guns have Remington spray laquer stock finish

There are no rib rollmarks or steel designation on Ilion Remington made barrels.

With respect to eras of Ilion Trojan restoration on another post: many of the skilled restorers who did the work overlapped all three generations of Del Gregos , and may have done some in the Remington custom shop as well.

Best, Austin