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Title: Lock Differs & Key Marking [Go to resource]
Description: For each lock, the file lists maximum differs, theoretical and actual. The file also contains technical information relating to key marking. License: http://creativecommons.org/licenses/by/2.0/uk/ Publisher: Walsall Archives / Local History Centre Rights holder: Walsall Archives / Local History Centre Temporal: c1957-1959 Source: Black Country History Identifier: http://www.blackcountryhistory.org/colle... Go to resource More Like this...
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