I have a postwar SA Garand that Perplexed was looking over very closely recently. He had a hunch the stock was WWII Winchester but we couldn't find any markings. Though we were outside that morning it was a bit overcast. Recently I decided the that finish on the stock in question was a little too "built up" so I did a linseed oil scrub on it. Today I applied a fresh coat of linseed oil to the stock.
Looked what popped out in the sunlight:
Looked what popped out in the sunlight: