Maritime Navigational Chart Ruler
Hi All
I just found this at a market. It is definitely an high quality item and weighs a lot, must be over a kilo. The maker is National Industries of 'The Mall Lahore'! Is this something that would have been used by the RN or possibly only Merchant Navy? Dated 1943.
I'd appreciate if anybody has any further info.
Thanks, cheers,
Alex
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