The listing, USA #1537 1978 UPU - Don Antonio Noreiga by Goya painting, mint has ended.
USA stamp commemorating the Universal Postal Union
Year: 1978
Catalog # 1537
Condition: full gum, mint never hinged, post office fresh
I have very few 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/