State L.N. Tolstoy’s Yasnaya Polyana Estate Museum
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One is expected to know where this is, and the clue is not in the caption but in the separate line about where and when the card was produced: Moscow, 1988. (That’s just a clue.) But the card was mailed in 2013 from Belarus, with a Belarusian “M” stamp and full Minsk postmark. Grade: 3