The 4 submarines were built in France in the period 1927 - 1930, served the R.H.N. during WW2 and were lost in action: R.H.N. PROTEUS: 1929 - 1940 R.H.N. GLAFKOS: 1930 - 1942 R.H.N. NIREUS : 1930 - 1942 R.H.N. TRITON : 1930- 1942 Nantes March 15, 1928 "TRITON": September 30, 1929 "GLAFKOS": July 1928, Caen naval shipyards Caen March 31, 1927 "PROTEFS": September 30,1929 "NIREUS": September 30, 1927 May 31, 1927 |


























