Steel Navigation Rule Set (0334)
Index: 0334
Year: ?
Maker: ?
Dimensions: 39 x 6 x 25 cm
Info
Indications on the arc are in gradians (gon).
No markings of maker or type, origin unknown.
We did not find any object alike.
References/Links/More Info
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Maico Audiometer Model D-9 (0378)
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