WebI got lucky and finally managed to obtain two modern Haff instruments that had been on my wish list for years, both at affordable prices; namely the Haff 706 hatching machine and the Haff 96aE "whale tail" elliptical compass (photos in the Section Linersand Ellipsographsalbums). WebSet of Haff drawing instruments, in metal case, 1975 Details Category: Mathematics Object Number: 1975-384 Materials: glass , metal (unknown) , paper (fibre product) , plastic (unidentified) , steel (metal) and velvet Measurements: overall (closed): 45 mm x 385 mm x 187 mm, overall (open): 203 mm x 385 mm x 187 mm, 2.23 kg type:

Haff Drawing Set - Etsy

WebSet of Haff drawing instruments, in metal case, 1975 Details Category: Mathematics Object Number: 1975-384 Materials: glass, metal (unknown), ... WebInstrument sets used by surveyors and cartographers may have included railroad pens and curves, dotting pens, and proportional dividers, while simple sets such as those found today were probably purchased for student use. One Philadelphia manufacturer became quite active as a drawing instrument maker in the latter half of the 19th century. graco aire3 click travel system

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http://surveyhistory.org/instrument_makers_theodore_alteneder.htm WebMar 31, 2024 · The compasses on the bottom row above are; drop or pump compass, 2 Inch bow compass for radii down to 1.5 mm, and a series of 4 indexed bow compasses for radii from about 8 mm to 80 mm. Drop … Webhaff: [noun] a long shallow lagoon separated from the open sea by a narrow sandbar or barrier beach (as on the Baltic coast of Germany). chillthrill709 toy