This Plaque was installed in the Bank of Canada Vault in the Diefenbunker, Canada’s Cold War Museum in Carp, Ontario on November 2008. In the past such commemorative plaques were often cast from ‘used’ cannons made of bronze. For the Diefenbunker memorial it was decided that it would be appropriate to use aluminum which (when appropriately alloyed) was much used as lightweight armour for military vehicles such as armoured personnel carriers during the Cold War. The particular aluminum used to create the plaque was obtained from scrap material left over during the upgrading modification of vehicles by DEW Engineering of Ottawa. We are grateful to then DEWChief Engineer retired army Major Tim Dear who facilitated this acquisition and to Alloy Foundry of Merrickville, Ontario who were able to cast this special armour alloy aluminum into the above plaque for us at a reasonable price.
