An Extremely Rare Summicron 5cm Prototype Lens
with 2 focusing knobs, absolutely near mint, original condition
with perfect lenses, rare front cap (inside 'Summicron')
with early hood ITDOO for Summicron 5cm,
also included: original PR photo by Leitz, see also: VIDOM no.87.
This Is The Correct Lens For Leica M3 Prototypes And 0-Series