MAKE A MEME View Large Image Set level (New Catechism of the Steam Engine, 1904).jpg 'If a spirit level cannot be had the engineeer can make a set level as illustrated It consists of a triangular board with one level edge planed true with a pencil mark at right angles ...
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Keywords: Set level (New Catechism of the Steam Engine, 1904).jpg 'If a spirit level cannot be had the engineeer can make a set level as illustrated It consists of a triangular board with one level edge planed true with a pencil mark at right angles to this edge and a plumb-bob attached to it in the manner shown ' Plumb bobs Levels
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