Birdcage pitch raise

[David Boyce]

Oh no, there are lots here much younger than that. I think they made them in 
England up until the start of World War 2.

David.

>Not having thought on it before, I had always assumed, 'birdcage', were pre
>1900.
>What is, the latest date of manufacture?
>John M. Ross
>Windsor, Nova Scotia, Canada