I have the crossbreed with the following backmarks:
- Pitt & Co Maddox St. London
- Pitt & Co, 31 Maddox St. London W
The Intelligence Corps buttons:
- Buttons Limited, Birmingham
- Buttons Ltd B'ham <crossed swords>
- Firmin, London
- Gaunt, London
- J.R. Gaunt & Son Ltd, London Engd
-J.R. Gaunt & Son, London
- Pitt & Co Maddox St. London
My suggestion: Crossbreed could be made by Pitt for the Intelligence Corps using the Lieutenant of County button as an example. After a while they found out and cut a new die. Another option is that they had the die as shown by Blair, did not check twice and used it for making gilt Intelligence Corps buttons.
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