Here is a good source to understand the details of all the Conlon cards.
All lists below are want lists.

1983 Marketcom Conlon Set Prototypes (5 cards) - COMPLETE!

1983 TSN 50th Anniv. 1933 All Star Game (60 cards, 4.5x6 inches) - need the complete set

1988 World Wide Sports Series 4
Error card: Thorpe is pictured on the front, and Charles Rehm's statistics are printed on the back.

1991 Conlon - 1st printing ("Hall of Fame" written out on front)
1 3 7 8 11 12 13 14 16 18 19 22 25 26 28 32 38 39 40 45 46 49 53 56 66

1991 Conlon - 2nd printing (no MLB logo on back) - COMPLETE!

1995 Conlon
3C Ruth

Conlon Color
13 Ty Cobb (All Star Fanfest on back) ($20)
34 Charlie Gehringer ($5)
35 Babe Ruth ($5)
36 Bill Dickey ($5)
37 Three Fingers Brown ($5)
38 Ray Schalk ($10)
39 Home Run Baker ($10)

Conlon Gold Border
661G Bill Terry ($10) only in 1992 All-Star Game program
662G Lefty Gomez ($10) only in 1992 All-Star Game program
1000G Ty Cobb ($5) only sold in ToysRUs Stores

Conlon Prototypes and Promotionals
34 Dizzy Dean (no Curtis Management statement or MLB logo) ($75)
111 Lou Gehrig (no Curtis Management statement or MLB logo) ($75)
145 Babe Ruth (no Curtis Management statement or MLB logo) ($75)
250 Ty Cobb (no Curtis Management statement or MLB logo) ($75)
661 Bill Terry (All Star Fanfest) ($6)
662 Lefty Gomez (PROTOTYPE) ($7)
664 Frankie Frisch (PROTOTYPE) ($7)
690 Jimmy Reese (All Star Fanfest) ($6)
710 Red Faber (All Star Fanfest) ($6)
905 Lena Blackburn (All Star Fanfest) ($6)
1190 Bill Klem (For Promotional Use Only) ($5)
1387 Rabbit Maranville (Club Members Promo) ($20)
1497 Gabby Hartnett (PROMOTIONAL) ($5)

Conlon Autographed Cards (white/silver signatures)
Johnny Mize
Bob Feller
Bobby Doerr
Johnny VanderMeer
Hal Newhouser

1995 Conlon In the Zone (with Ken Griffey, Jr - 8 cards)
1 (w/o PROMOTIONAL)
2 4-8 (w/ PROMOTIONAL)