Close up of ChessOnStamps – Subotica ’87
This closeup contains some information that might be useful to a chess historian. First, the commemoration stamp (in red) uses the anachronistic “Men’s Interzonal Tournament” instead of the modern nongender “Interzonal Tournament”. It is my understanding that 1987->1990 WCC cycle was the last cycle to explicitly use “Men’s” in the tournament title. The Polgar sisters had arrived after all!
Next, if you look very closely, just below the graphic and “Subotica ’87” in the middle of the red stamp, you will notice that the tournament dates are also shown, “22 VI – 14 VII” indicate the starting and finishing dates of the tournament: Monday, June 22, 1987 -> Tuesday, July 14, 1987.
The round black postal stamp is also from the first day of the tournament (22.06.87.19), which is to be expected for a collectable found on ChessOnStamps (and one which can be bought at the same site).