Bernhardt Assmus
Bernhardt Burghardt Assmus was a German stamp forger operating in London. He was originally from Hamburg.
He was unmasked after Morris Giwelb bought forged Penny [Black VR official|Penny Black VR] official stamps from him in August 1890. Giwelb accompanied the police on a visit to Assmus' premises at 12 Church Street, Islington, and assisted them at Vine [Street, London|Vine Street Police Station] in sorting the seized material.
He was found guilty of fraud in 1892.