Just to confuse you. I believe all early Bryans machines were fitted with Yale locks. Including the fifties allwins, and my Bullion cash drawer lock which is definately original.
Mabye later machines were fitted with Lowe and Fletcher brass coloured locks?
The Lowe and Fletcher locks pictured are much later locks which fit Bryans machines and I have used them myself as a temporary measure until I obtain an original, which are now very hard to come by.
Clear as mud?
Pictured is my original Elevenses lock, exactly the same as my Bullion cash drawer.