Fredrik Carl Mülertz Størmer is known mostly as an accomplished mathematician and physicist from Norway, but as a side hobby he was also an amateur photographer, taking to the streets of Oslo with a bulky camera secreted in his clothing to capture candid moments of unsuspecting passersby. Most of his photos were taken in the 1890s while Størmer was a 19-year-old student at the Royal Frederick University using a Stirn Concealed Vest Spy Camera, a secretive camera with a narrow lens designed to poke through a vest pocket’s buttonhole. More