Bill was also responsible for the AVA patent when Chubb bought the company, the small AVA padlock gradualy replaced the anti-pressure padlock for diplomatic mail bags.

Regarding the Aubin trophy WHS was also a keen photographer and took a series of pictures of the individual locks, both assembled and disassembled, as he worked on it. This picture shows one of the tiers.

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These pictures are in the Heritage Rooms Archive. We also have the WHS dairys and much other material and would be a good project for a HoLRSG focus Group.