Navigation Sliding arm of an Astrolabium Catholicum, A sliding arm, part of an astrolabium catholicum. The sliding arm consists of a wooden base and a copper three-part arm. The wooden part slid over a slat mounted diametrically on the astrolabe and could be clamped to it with a screw (see the rectangular recess for a copper plate with a screw hole in the middle). The three brass members of the pointer could hinge, Nova Zembla, Behouden Huys, Willem Barendsz, Jacob van Heemskerck, anonymous, c. 1590 - c. 1596, wood (plant material), wijzer, striking (metalworking), l 42 cm l 20.2 cm l 22 cm w 6.4 cm × d 1.3 cm
Keywords:
Navigation Sliding arm, Astrolabium Catholicum, sliding arm, part, astrolabium catholicum, sliding arm consists, wooden base, copper three-part arm, wooden part slid, slat mounted diametrically, astrolabe, clamped, screw, see, rectangular recess, copper plate, screw hole, middle, three brass members, pointer, hinge, Nova Zembla, Behouden Huys, Willem Barendsz, Jacob van Heemskerck, c, 1590, 1596, wood, plant material, wijzer, striking, metalworking, l 42
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