File talk:Three 20x138B shells and 37 mm shell.JPG

Note

The 20x138B cartridges have been identified based on the book Pitkänen, Mika; Simpanen, Timo (2007) 20 mm Suomessa - Aseet ja ampumatarvikkeet ennen vuotta 1945 - 20 mm in Finland - Weapons and ammunition prior to 1945, Tampere: Apali ISBN 978-952-5026-59-7 MKFI (talk) 14:19, 28 June 2010 (UTC)