1956 mantle white vs gray
 

I know the 56 mantle #135 white back is more rare but at what ratio versus the gray ? I've heard from different people 2 to 10x as scarce ... thoughts ?

Check the PSA pops. It's free. Then judge for yourself.

I did the math, because I've been looking for an upgrade for the last several months to my 56 Topps grey back.

The ratio overall is 14 greys for every 1 white card. I think this is a higher skew than for many other players in the 1956 set.

But, if you want better conditioned cards, then white backs become even more scarce. PSA 6+ are MUCH, MUCH scarcer in white relative to grey backs (56 to 1)

ALL CARDS
Grey: 6272
White: 455
Ratio: 14-to-1

PSA 6+ graded
Grey (6+): 2261
White (6+): 40
Ratio (6+): 57-to-1

White to grey, other cards
 

For comparison sake:

ROUGH RATIOS (I didn't do the same precise math as for Mantle):
Mantle: 14 to 1, grey more than white
Clemente: 3 to 1, white more than grey
Robinson: 3 to 1, white more than grey
Williams: 3 to 1, white more than grey
Koufax: 4 to 1, white more than grey

The other outlier, like Mantle:
Mays: 14 to 1, grey more than white. The greys in higher grade - PSA 6+ - are 42 to 1, grey more than white

Wow good stuff thanks guys wasn't sure about the stats