Forum: The Heritage Collection
For Reference and Comment... It’s estimated there are over 5,000 artefacts in our care and date from Roman 2nd Century keys to the Post WWII experiments with high security mechanisms. We present here selections from The Heritage Collection for your interest and comment.
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Never seen a mappins patent with only 4 guards. Odd. It's chicken and egg, I find that the key will not want to go in until it's already cut as the sharp edge on the blank does not move easily...
Is it a Mappin