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JoshHere's the '59. I don't have the 1960 back scanned and the card is in my safe deposit box, but the back appears identical to the US Topps issued 1960 card... the differences are very subtle. The card stock is a slightly different texture, and the front of the card has significantly less gloss than the US version.

The 59 Venezuelan Mantle back is quite mysterious. They all have that same spot of paper loss, and the ink is always printed very lightly towards the bottom left corner especially (when viewing the card as pictured). I have never seen an example that is different and I have seen the backs of 4 total examples.
Josh