Almost completing 520 set, what next?

[Tao_Moko]

T205 would be a challenge that meets your requirements. M116 is a beautiful set but I think it is pretty tough to truly complete. T212 is a other fun one.

[gnaz01]

E107 set

[ethicsprof]

I'd suggest researching the history of each player exhibited on the cards until you know them so well that you can call John Thorn up and have a fabulous discussion. Then after researching the abundance of scholarship on the history of the making of the individual cards themselves, I'd suggest taking a look at the list of publications written by members of our esteemed board and read as many as you can get hold of. When you realize that you should now have the equivalent of an advanced degree in the T206 specialization, you might decide to be a type collector of vintage baseball cards. After doing this, you can research the history of each player exhibited on each....... you know the drill.
all the best in your unparalleled journey,
Barry

[tbob]

T205 is the logical next set to work on. Beautiful and still priced within reason are the 4 Obak sets- 1909, 1910 set of 150, 1910 set of 175 and 1911.

[glchen]

I think some of the nice looking sets like E107, E121-80 are practically impossible to complete since many cards in the set are so rare. If you're looking for a nice set that you should be able to complete over time, I think that the Cracker Jack set is probably still the best choice. Other ideas are:

(1) E95
(2) E93
(3) 1921 E253 Oxford Confectionary
(4) 1926-29 Exhibits

[edhans]

E90-1.

[bn2cardz]

If not t205 I would suggest e90-1 or e92