Summicron 5cm LTM help

[clicker]

I am asking RF members to share their knowledge regarding th Summicron 5cm lens rigid model LTM produced in the mid fifties. I don't think I have ever seen one so I assume that it was a low production lens but I am not sure if that is true.
Thanks

 

[Erik van Straten]

About 500 pieces were made.

Erik.

 

[clicker]

Thanks Erik for the information.