1977 Topps B'Ball - white/gray
 

A few years back I got myself a complete set of 77/78 Topps, and all but 3 of the cards were white. I've since been looking for a set of gray backs. I once read where they were produced in roughly equal amounts and that neither commanded a premium, but after a few years of searching, I can say that the gray backs certainly seem scarcer, especially when looking for a complete set of them.

Can someone illuminate me on what is know about the production of the 77/78 set and why we have this variation, and whether as I seem to be encountering the grays are harder to find?
Thanks!

I heard that too but my experience is that the gray backs are much much harder to find.

I just thumbed through my set all white backs.
Larry

The gray backs are substantially more rare. Oddly, there hasn't been any premium given to them, though you could probably demand a bit more for the stars. You won't find them segregated by psa either.

I know there are people who are down to needing just a few to complete midgrade sets of the grays so it is possible. You will find small lots of them on ebay if you save the search.