Jens Landmark

Norwegian politician (1811–1880)

Jens Landmark (17 December 1811 – 9 July 1880) was a Norwegian military officer and politician. He reached the rank of lieutenant colonel, was the director of Kongsberg Weapons Factory from 1854 to 1880, invented the Landmark conversion and served both as mayor as well as three periods in the Norwegian Parliament.²

From Wikipedia’s article on Jens Landmark (this version), CC BY-SA 4.0.

Born Dec 17, 1811, died Jul 9, 1880.¹