hi,

i am collecting old keys, all are older than 200 years
and i have got some english keys but in this case i can not help you.

do you know william wallace?
he wrote a book about english keys last year, maybe he can help you.

https://www.amazon.co.uk/Lure-Key-Kn.../dp/1910787256

https://books.google.de/books/about/...ir_esc=y&hl=de