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Industrial Combination Block
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Old Industrial Combination Swage block:
This is a fairly primitive block and fairly well designed with only one weak corner.
The two curves at the top are catenaries created by bending a thin piece of wood or drawing by hand rather than drawing them with a compass.
These large curves and the shallow bowl depression make this a combination block rather than a strict industrial block.
New evidence indicates that this block may be a II&B Vulcan brand no. 4 or 4½
The image above indicates a brand NOT Vulcan and the owner says the dimensions are 15 x 15 and 270 pounds.
The Vulcan catalog page says 164 pounds. More mysteries than answers.
The lettern "O U T H E N" can be made out. The name "Bouthen" comes up in searches but is not common.
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