Nearly 40Kg.
If you are talking about the person who found the Holtermann Specimen, his name is Bernardt Otto Holtermann.
Bernhardt Holtermann was one of the partners in The Star of Hope Gold Mining Company which discovered this vein of gold embedded in rock, the largest specimen of gold ever found, Although he was not the sole discoverer, he was the one who publicized it and his name stuck.
l
Bernhardt Holtermann was born in 1835.
Ove Bjelke Holtermann was born in 1852.
Ove Bjelke Holtermann died in 1936.
Peter Høier Holtermann was born in 1820.
Peter Høier Holtermann died in 1865.
Didi Holtermann died on December 17, 1975, in Norway.
Hans Reidar Holtermann was born on 1895-10-20.
Hans Reidar Holtermann died on 1966-10-25.
Christian Holtermann Knudsen was born on 1845-07-15.