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City Rule with instruction booklet – NOW OUT OF STOCK – BACK ORDERS ONLY FOR DELIVERY IN OCTOBER

£19.17

Designed by Campbell and Obstfeld

Distributed by Norville

An optical ruler that enables the user to accurately measure the following:

Boxed Centre
Boxed Lens Size
Conventional Inset
Geometrical Centre of Segment
Geometrical Inset
Monocular Centration Distance (This is not a term or measurement defined in a British Standard)
Fitting Height
Segment Bottom Position
Segment Depth
Segment Diameter
Segment Height
Segment Size
Segment Top Position

Supplied with instruction manual – to download a copy of this please click here

SKU: BK052. Categories: Full book list, Rules & Gauges. Tags: Frame rule.

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