Bronze version, type 1.
Size 54.5 mm.
Thickness 4 mm.
Weigh 89 g.
Designed by Hata Shokichi (signed near Togo's right shoulder) and manufactured by the Japan Mint (hallmarked on reverse).
Obverse bears admiral's full name and titles.
Reverse shows part of the battleship Mikasa and...
Obverse
In the red enamelled circle
防空 - Air Defense
Vertically
昭和九年防空演習記念 - 1934 Air Defense Maneuvers Commemorative
Horizontally
芝区壹壱ノ部分團 - Shiba Ward (Tokyo) 1st Branch
Case.
防空記念 - Air Defense Commemorative
Salty specimen.
Obverse
熱河討伐記念 - Rehe Subjugation/Suppression Memorial
Rehe province is located in today’s Hebei (河北) province.
https://en.wikipedia.org/wiki/Rehe_Province
reverse
康徳元年 - 1st year of Kangde era = 1934
2594 = 1934
第七師團 - 7th Division
Reverse
皇紀 - Imperial year
二千五百九十四年 = 2594 = 1934
三月 - March (Empire of Great Manchuria was proclaimed on 1 March 1934 and Puyi became Kangde Emperor).
滿洲帝國政記念 - Manchurian Empire Government Commemorative
騎兵集團 - Cavalry Group
Marked
純 - pure (obviously for 銀純 - pure silver).
Size 31 x 23 mm.
Weight 11.8 g.
Obverse
奉迎 - Welcome
Kanji form was changed beyond recognition because of the small seal script.
Reverse
満州国皇帝陛下奉迎委員章 - His Majesty the Emperor of Manchuria Welcoming Committee Member Badge
昭和十年四月 - April 1934
Details.