They are not uncataloged, I have seen them from time to time.
Listed as 1951 Roadmaster Photos in the SCD Standard Catalog of Baseball Cards.
Feller NRMT $200
Reese NRMT $250
(Im looking at the 2008 book)
Edited to say..sorry I didnt read your post first. I see you have a different uniform one, very cool!
