Posted By:
davidcyclebackMy recommendation would be to get at least a few of the star rookies or Mickey Mantles (if there are any) graded by PSA. Not only would this help in selling these as singles, but, if you were to offer as big lot or lots, having some graded would result in a higher sell price as bidders will have much more confidence. There would be no need to send in the entire thing to PSA.
Even if your collection doesn't contain any Hall of Famer rookies or Mickey Mantles, it still might be a good idea to get a handful of better cards graded. Even MastroNet will get four or five representative cards from an ungraded set graded by PSA as they know it will increase bidding.
If you have a large collection of 1950s baseball cards with some nice stars and rookies PSA graded, you would have no trouble find a reputable auctioneer to sell them for you. If it's not something MastroNet would take, there are good eBay sellers like SCGaynor would sell them for you.
Don't expect anything near book prices for lower condition ungraded cards, but there would be demand for a collection of 1950s Topps baseball cards with a handful of PSA graded keys.