Submarines for Siam launched at Kobe, Japan according to the Dutch magazine Marineblad dated 1937 no. 4

An item referred to the Jap. Chr. dated 20 May 1937 reporting the launching at Kobe, Japan on 14 May 1937 of two submarines built for the account of Siam.(1)

Note
1. Coastal submarines. Japanese shipyards built several submarines for Siam.