Maybe look into a 1-8x40 leupold, or others. Duplex, or Firefox duplex. Magnificent craftsmanship on the double gun. Beautiful.
Did you try the second link I posted? They are in the US I think.Very close. I have downloaded Recknagel Catalog 12 and see page 21. Looks close, but I can't really bridge the gap. The rings seem to not have the claw foots on them. Looks like a vary good machine shop needed.
It is frustrating since German technology to mount claws to scopes should have a simple way to get rings that have claw foot on them. There are even extensions where the rear foot can be extended for proper eye relief.
Please download the Katalog 12 and see page 21. How can I work from there? https://www.recknagel.de/en/info-service/catalog/
Trying to read the German/English hurts my brain!
I am reaching out to Kahles and see if they can help.
Please stay with me!
The overall problem was that the guns were handmade by elaborate gunsmith work. The claws and scopes were made for individual high end guns, and don't transfer well. I have several guns, but can't swap the scopes between them.