There are only 30 known joint covers. Linn's Stamp News on their Jul 20th, 1992 Vol.65 Issue 3324 showed a similar pictorial joint FDC on their front cover Stamp News. The title says " Blue first-day in Rome ". It also described the following'For some reason, Italian postal officials used blue canceling ink for the Christiansted, Virgin Island, first-day cancel, but black for the Italian pictorial. The blue ink, shown on this first-day cover, is known only on covers prepared in Rome, Italy. UNPAID items over 48 hours are subject to cancellation. This item is in the category "Stamps\United States\Covers\FDCs (1951-Now)\1991-2000". The seller is "sj_room4rent" and is located in this country: US. This item can be shipped to United States.