The listing, USA #1480-1483 1973 Boston Tea Party block of 4, mint has ended.
USA Boston Tea Party, block of 4 different
Year: 1973
Catalog # 1480-1483
Condition: full gum, mint never hinged, post office fresh
I have several of these stamps, all identical, the scan is representative of what 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/