new reference frame: https://www.wikidata.org/wiki/Q11333551
https://saisaibatake.ame-zaiku.com/musical/instruments_flat_mandolin.html
ico https://saisaibatake.ame-zaiku.com/gakki/music/f_mandolin.gif

Archived request from the wiki:

Flat mandolin

• Wikipedia: ja:%E3%83%95%E3%83%A9%E3%83%83%E3%83%88%E3%83%9E%E3%83%B3%E3%83%89%E3%83%AA%E3%83%B3
• Family: Strings/.../Mandolin
• Description: presumably either a flat-topped or flat-backed mandolin (Google results were inconclusive)
• Appears on:
  1. MISSLIM Track 7 as mandolin
  2. Nouvelle Vague Played by Kohnosuke Sakazaki, currently uncredited
  3. örb Played by Kohnosuke Sakazaki, currently uncredited
  4. GLINT BEAT Played by Kohnosuke Sakazaki, currently uncredited
  5. Going My Way Played by Kohnosuke Sakazaki, currently uncredited
  6. TIME AND TIDE Played by Toshihiko Takamizawa, currently credited as mandolin
• Comments:
  • This might be a wasei-eigo term. If anyone knows of any English-language information on this instrument, please let me know. --HibiscusKazeneko 08:26, 22 October 2012 (UTC)