Finland #262 with TJUDÖ (Åland) bridge-style cancellation on neat cover to Stockholm. Though the year date is not clear, the 12m rate to Sweden as double rate ran only 16 January 1946 through 31 December 1946 and as single rate only 1 January 1948 through 30 November 1948. This device was the first postmark at Tjudö and it is interesting to note that Mattsen only recorded it used in 1950. If the franking is to be relied upon, then this usage moves the cancel usage range back at least a couple years. Regardless, I believe that this is the ONLY pre-1970s TJUDÖ cover I have ever had (in 32 years)! Quite scarce.
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