Makes sense regarding the PSA 1s. I figured $10k plus is where you will be looking on price.Last 3 intact Mantle PSA1 have sold for over $10K. (Watchcount eBay data only)
One that had a hole all the way through the surface, $6,600K.
For AUTH it is funny you mention the one for $6.6k. There is on on eBay now which is laminated and alterned (BGS) and one which a freaking kid must have drawn all over it to make Mantle have a long beard LOL. Just hard to pull trigger on a card which is so damn beat up and for something on the order of $6k or $7k or whatever. Just so much money for something in such terrible shape. Much rather scrap together the extra $$ and get a decent PSA 1 if that is what you are in for.