Posted By:
Scot ReaderTed,
Yes, these six 350/460 "superprints" are available with a different and larger group of backs than can be found on the 350/460 "regular prints". More particularly, these six subjects can be found with all backs that appear on 350-only subjects as well as all backs that appear on 460-only subjects. I believe these six are indeed possible with Sovereign 460 (in contrast to the other 350/460 subjects, which are NOT possible with Sovereign 460). If you look at the survey data I provided I think at least a couple of these six were confirmed with that back. Hence, my earlier expressed hope that you will tackle the Sovereign 460 subset that includes the 48 460-onlys plus these six--for a total of 54 cards. While challenging, it should not be nearly as daunting as, say, obtaining all of the Piedmont 42s.
Your Chance w/Lenox is rare--but I can't say for sure that it is any more difficult than any other subject with that scarce back.
Scot