Here's a Leitz Summicron 2/5cm, with front cap and keeper.

Serial number: 1349614, made in 1956 for use with Leica screw mount cameras.

This is the collapsible version.

Clean condition, with signs of light to moderate use on barrel.

Optics has cleaning marks on front element and some dust inside.

Focusing and aperture rings are moving evenly and smoothly.

Please have a look at my other auctions for more items, - I'd happily combine shipping costs.
Good luck!