Leitz Summarit 5cm f1.5 lightmeter but it's pretty nice: it's

but it's pretty nice: it's a clean 10x achromat with excellent sharpness

so you'll want to keep it well maintained to preserve its condition

there are a few deeper scuffs and scrapes which do not affect function (the most notable is visible in the photo)

Is it a real Leitz head

Leitz Summarit 5cm f1.5 lightmeter but it's pretty nice: it'sThe Leitz Summarit 5cm f1. 5 is a classic fast standard lens for Leica thread mount. This is a 1955 model in good condition, just back from a complete professional service. Minor cosmetic wear, smooth focusing and good diaphragm action. Optics have a touch of coating wear from cleaning, but are otherwise in nice shape.