Publicity proofs have been, at varying times since WWII and to varying degrees, produced by the post offices of many countries for the purpose of informing the media and thus the public about upcoming stamp issues. Sometimes they are the actual stamp issue overprinted to remove their franking value (Germany has "Muster", Japan has "Mihon", Finland and Aland had lines or postmark-like overprints). In the case of Sweden, starting at least by the 1960s, black and white enlarged reproductions (normally just one stamp design for each set of stamps) of stamp issues were distributed to newspapers and magazines. By the 1970s, black and white, and then later color, photographs were distributed. I have never seen any indication of how many of each were produced, nor any listing of what is known to exist. However, based on my experience of seeing less than five examples of any given item in the last 36 years, I have to believe that only a few hundred of each were produced. These are avidly sought after by collectors of Sweden, collectors of the different stamp engravers, and thematic collectors. All of them are scarce. All items are available for viewing on approval.