Harrison Brass Sovereign Rocker Coin Scale

£55.00
Harrison  Improved  Rocker Brass Gold sovereign scales
Manufactured in the mid 1800's to early 1900's
In fully working order and in good condition for the age of the item
10cm in length 
A very clever design and a scale still current and usable today.
This is a balance scale for full and half sovereigns which also measures the circumference and the thickness.
As gold is one of the heaviest metals one way to forge a sovereign in brass would be to make it slightly larger to make up the weight.
This clever invention puts a stop to that.

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Brand Brass Coin Scale