The listing, USA #R733 1962 Documentary stamp, mint has ended.
USA stamp from 1962 commemorating the Internal Revenue Service. This was the 2nd-to-last Revenue stamp issued by the US Government. The last one had the same design but with "established 1862" omitted...
Year: 1962
Catalog # R733
Condition: full gum, mint never hinged
I have several of these stamps, all identical, the scan is representative of the one you will receive.
My general terms for stamp-related Listia lots can be found here (please read, it answers a lot of basic questions):
http://listiarules.webs.com/