1933 Leica III (F) in the rare black
enamel and nickel version. This is the first Leica to have slow speeds,
which is on a separate dial on the front of the camera. Eyelets
for carrystraps and a diopter adjustment on the rear viewfinder window
were also added to this model. This example has the equally rare
Nickel version of the Summar f2 / 50mm lens first introduced in 1933.