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Title: Model, scale 1:12, of an Avery "Dead-weight sack scale" for [Go to resource]
Description: Model, scale 1:12, of an Avery "Dead-weight sack scale" for farm use. With two 56-lb weights. (2 further 56 lb and 128 lb weights to scale made in workshops) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1951-93 Go to resource More Like this...
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