Spectacular Series of Dutch Submarines from 100 years ago

Spectacular Series of Dutch Submarines from 100 years ago

The originals are available in color now.

This series about Dutch submarines nearly a century ago (so far) consists of four parts:

Part-1: Submarines on exercise in 1928 in color:

Part-2: Torpedo tests in 1923 in color:

Part-3: Submarines in Indonesia in 1938 in color:

Part-4: In Amsterdam, Construction, Launch O-10 & Waterplane:

thanks to Subsim member Polundra!