Mutar rings bayonet 1

These two rings will make your Mutar lens (0,7 as well as the 1,5) with bayonet 2 or bayonet 3 size into a bayonet 1 Mutar. For all bayonet 1 Rolleiflex cameras and the Rolleicord cameras. Complete with the 3 screws.
This is a very rare item.