Japanese WWII Battleship Postcard Set, GI Souvenir

Original era publication. Nice lot of 7WWII Japanese Battleship postcards in original colorful sleeve. Written on the reverse of thecover is, 'From M, Mizoke, Japanese Training Squadron Flagship Iwate, Wireless Operator'. cover is a bit tattered, but the cards are fine, each has the name of the ship written in English on the front.