That's a great colorized picture provided by Marty. Unfortunately, there probably isn't a lot of stuff available, excepting minor league programs/scorecards or a team photo - which generally appear infrequently on eBay or other venues given the time period Al Richter played.
This link (baseball-reference.com) to his complete professional record may assist in pinpointing the teams for purposes of acquiring such items: http://www.baseball-reference.com/re...d=richte001all
According to the 1400+ page (11th edition, 2005) Beckett
Baseball Card Alphabetical Checklist, Al Richter appeared on three cards (all of recent vintage):
2003 Jewish Major Leaguers (regular) #80
2003 Jewish Major Leaguers (gold) #80 - one is available for $6.95 postpaid on eBay at: http://www.ebay.com/itm/2003-Jewish-...rnYlwXjHjq53Yg
2003 Jewish Major Leaguers (silver) #80
A complete 2003 set of all 142 different cards (presumed to be the regular issue) is $32.99 postpaid at:
http://www.ebay.com/itm/Complete-Set...AAAOSwZQRYYtN8
(Neither offer is mine.)
Hopefully the Richter family will be successful in acquiring memorabilia of his Al's career. Sadly, we ran into a similar issue with relatives of Dale Mitchell (unfortunately no relation) a few years ago.