The Mount Gassan is with Haguro-san (414 m) and Yudono-san (1'500 m) one of the three sacred mountains of Dewa (Dewa-Sanzan). The Mount Gassan is part of the Bandai-Asahi Nationalpark and one of the 100 famous Japanese mountains.
The stamp was issued perforated in sheets of 20 stamps and imperforated in the souvenirsheet "Bandai-Asashi Nationalpark".
Japan 1988, Mount Gassan.
The stamp is existing perforated and imperforated in miniaturesheet.
(please see below)
Miniaturesheet "Oku-no Hosomichi" (Matsuo Basho's Diary series).
Japan 2002. Mt. Gassan.
Japan 2007, Mt. Gassan.
Japan 2013, Mount Gassan.