The listing, USA #1440 1971 Historic Preservation - Decatur House, mint has ended.
USA stamp celebrating Historic Preservation
Year: 1971
Catalog # 1440
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.
There are 3 additional stamps in this series, they are listed as separate lots.
Note: if you wish to obtain the entire un-separated block of 4 containing the rest of the stamps in this series, I can create a special lot with a GIN of 6,000 credits (that works out to a reasonable 1,500 credits per stamp.
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/