Posted By:
Bruce BabcockThe Old Cardboard site listings and prices for R-cards indicate the relative difficulty of those issues. It will be tougher than finding a Goudey Foxx, but probably easier than finding a George C. Miller, in my experience. Maybe someone on the forum has the PSA Pop report on Tattoo Orbits.
http://www.oldcardboard.com/cardSetList.asp?GroupID=5