Gehmann 507 Yellow wanted

[10x]

I have 2 sets of 507 rear colour ring set and only use the yellow ring. I have now another 565 iris and would like another yellow ring.

Before i buy another set has anybody got a set that does not use the yellow that would like to sell or swap for any other brand new not

used colour......Just to add that i do not need the colour lens.....

Edited 18 November 2021 by 10x