Edward Preston Square Review By: I.Ball
Category: Old Squares
Manufacturer: Edward Preston
Tool Type: Diagram / Architects / Tailors Square
This Edward Preston diagram square, also referred to as an architects
square is a folding square which opens to a 90 degree angle to form
a small version of a tailors square.
The square can be used for all three uses / professions which no doubt is not the exhaustive list of what this square has been used for.
This well-made Edward Preston square is made from boxwood which is combined with a special 90 degree brass hinge and brass ends.
The outer edges on the top side of the folding rule square are bevelled to give a nice steady slope from the edges to the face; a feature which is common with old architect's rules.
The 6 inch arms have various measurements on each arm. The undersides
of the arms are marked in inches which are further broken down into
The upper sides are marked 1-24 on each arm which are further broken down into 4 increments for each number. Each of the 1-24 measurements measures 1/4 inch.
The rule is marked 'E. Preston & Sons, Birm Eng'.
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