Guess the grades on the holders. Four - 1937 D Nickels (REVEALED)

I noticed these are starting to accumulate around the house. Anyway they consist of four different numerical grades. The winner will receive no prizes and most likely no acknowledgement.
1. In a PCGS Slab
- NGC
3.NGC
4.NGC
0
Comments
65, 64, 63, 45.
64, 65, 62, 45.... Cheers, RickO
66, 64, 63, 55
65,65,63, 50.
65-64-64-45
66, 64, 63, 53
64 66 63 and 45 on the 3 legger.
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65, 64, 63, 50
65,64,64,50
Young Numismatist • My Toned Coins
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64, 65, 50, 40 - nice 3 Leg
65, 66, 64, 50
Looks like bromitchell was close with 53 on the three legger!
The pics don't quite capture the luster and that seems to be big part in the grading.
Thanks for playing along
I think the 3 legged is overgraded.