The Blackless part I was completely unaware of until I joined here. 1990 O-Pee-Chee is hard to tell as well. It can definantly be diffucult trying to find these cards RIGHT as you put the binder away with your completed set!

1990 Fleer Canadian might qualify for your list.  I think it's one that many don't know about.  

Does 1954 Topps Canadian qualify for the list.

1991 O Pee Chee is the same boat as 90. 

1984 Topps/Nestles?  Cards are identical except the Topps logo on the front is replaced with Nestles.  When I joined this site I even spotted some scans in the database that had to be replaced.  

You already have 1991 OPC... We all have those moments. You can also choose any SP with sabermetric stats on the back.

This is so helpful, thanks for putting it together!

Nice list!

This just helped greatly as I was sorting all the baseball cards I've accumulated to I can post them on my For Sale/For Trade List. I had to go back and edit my lists a couple of times but finally got them HOPEFULLY properly organized now due to this list. 

THANK YOU!