The vast majority of the puzzles are mechanical puzzles rather than word or mathematical puzzles.

Aluminium advertising piece

The puzzle is to open the piece. It advertises M.C.L. AND REPETITION LTD. The outer surface also includes the words BRITISH ALUMINIUM BA-35. This will be the alloy type from which the puzzle is machined.

    • Size
    • The shape is approximately cylindrical: 26mm long x 12mm diameter.
    • Date
    • Probably the middle of the 20th century.
    • People_or_organisations
    • M.C.L. and Repetition Ltd.
    • Key_phrases
    • Take apart, advertising items
    • Category
    • Ref._no.
    • P51 W2

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