Through Fabio Bonacina and Enzo Cafaro (Italy) , a request came from a reader of Vaccari News to re-qualify the following Italian and San Marino stamps:

The Italian stamp and the San Marino (RSM) stamps have been issued on the same date of April 12, 1950. The Italian stamp is a specific stamp for the 28th Fiera di Milano (Trade fair), while the RSM stamps are definitive stamps overprinted with the Fiera di Milano reference. The definitive RSM stamps were also issued on April 12, 1950. Such stamps are usually not considered as joint issues, because no specific stamp was issued at this occasion by RSM. From the general rules, overprinted stamps are just considered as Non-accepted [N], in this case, subclass overprinted [OP] (which are reported in the catalogue).

However, there is an exception, when the overprint is combined with a change of color. In others words, and also in this particular case, these three RSM stamps have been specially printed for the Fair and overprinting appears only on stamps with a different color. As such they have to be considered as joint. In the same way, during this 1950’s period, France produced also a series of overprinted Tunisia and Algerian stamps with different colors, which were considered as Territorial issues [TD]. There was no such a territorial/colonial relationship between RSM and Italy, and stamps do have a different design. Parallel issue [P] would be the best definition. This seems to be the first encountered case and it needs the creation of a new sub-class of Parallel issues that will be called [P3]. It corresponds to Commemorative stamps issued on the same day, with a different design, in which at least one country is using overprinted stamps, but those stamps do not exist as non-overprinted standard stamps.

Standard San Marino stamps with the same design show respectively the colors, red and brown (5L), violet and black (15L) or blue-green and blue (55L), while the overprinted stamps are respectively green and blue (5L), black and red (15L) or brown and blue (55L) with overprint respectively black (5L), blue (15L) or black (55L). Non-overprinted stamps with these colors do not exist. At the same date of April 12, 1950, Trieste (Zone A) issued the same Italian stamp with overprint “AMG-FTT” in red. Italian stamps were issued at 3,305,000 samples, San Marino at 3×37,411 samples and Trieste stamps at 150,000 samples. Note that the nine non-overprinted San Marino stamps were issued only at 14,033 samples each.

The catalogue Vol 2 will be updated accordingly and the new definition of [P3] will be introduced in Catalogue Vol 1.