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Title: Navigation Rule and case [Go to resource]
Description: Card and imitation-leather two-piece cover and air navigators Speed-Time-Distance slide rule. Case is faded burgundy red and slightly worn and flattened. Rule is white with markings in black and red. Source: Lincolnshire County Council Identifier: http://www.lincstothepast.com/Records/Re... Go to resource More Like this...
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