Earlier Manifoil than Mark IV? And other questions.

[soakes]

A short history of Milners' and Chubb appeared in The Lock Collector (published in the UK by Tony Beck), issue 14 (Jan/Mar 2007). There it is stated that Milners' invented the Manifoil in 1951 and merged with Chatwood in 1956. In 1959 Chatwood-Milner was purchased by Chubb but operated separately under their own name until 1970. A little more information is in issue 16.

Some Manifoils are marked CM (Chatwood-Milner) and some are marked Chubb. Perhaps very early ones are marked differently.

However, I have a Manifoil that is marked CM Ltd. 1976. Is there an explanation for this discrepancy?

Reviving an old thread... this is very interesting information to me. I have a CM manifoil in a safe I have inherited (see other thread). Wylk, did you ever find out any more information about the earlier manifoils?