[ALR-bishop]

Richard's lists are as good as anyone's (and better than most)as a comprehensive list for variant cards. Someone else may list other print variants ( since they are endless) but he certainly lists the variations most recognized in the hobby via catalogs or the Registry. But his list contains many print variants that have little hobby recognition and therefore little premium hobby value. His lists are very valuable to me and other variant collectors, who seek out such variants regardless of how much hobby recognition or value they have.

If you are trying to just identify cards that would have premium value over their "common" regular card in the market, I would start with the PSA Registry master list for the applicable set ( even if the cards you have are not graded and you don't intend to grade them, the Registry list is a must have for most master set collectors).

Other good resources, which also reflect broad based values, would be the SCD Standard Catalog and the Beckett counterpart. If you do not want to invest in those, then just type in an internet search for "Topps 1961 ( or whatever year) checklist variations". Once you have a list, an ebay search of completed listings for any particular variant can give you recent values. Or just do a completed listing search for "Topps 1961 ( or whatever year) variation"