Posted By:
Brian McQueen
I've started a few sets...one for each major "genre" of the 20th century -
e99 -- 6 out of 30
d322 -- 18 out of 25
c46 -- 68 out of 90
m116 (bluebacks) -- 23 out of 24 (but only if you count proofs and advertisement pieces 
)
I also collect other various type cards from the 20th century sets. It's more or less just me identifying my favorite cards from specific sets and going after those only.