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Description
This rule was made for the Hungarian People's Army, and has special sine and tangent scales for solving ballistic calculations in mils (6000 mil = 360°). The rule was almost identical to the type 1252, but the bigger holes on the back haven't indices, so the back scales on the slide can only be used when the slide is inverted.
Manufacturer:Gamma Finommechanikai és Optikai Múvek N. V. (Hungary)
Mfg. date:1950-51
Size:152×34×10 mm
Purpose:artillery slide rule
Material:body: pearwood
scales: celluloid
Scale length:12,5 cm (5-inch)
Scale order:special
front: cm / Dh | Sv Tv C | D
back: | S0v C |
Window:plastic with 1 index



The artillery pocket slide rule without any markings belongs to manufacturer
Further readings
Similar items
Gamma Művek
1252
1949-51
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