MPS A I 132

 

Museum: Mathematisch-Physikalischer Salon, on display, Online Collection

Title: Sector, Gunners Compass

Inventory number: MPS A I 132

Date: Between 1600-1650

Material and technique: Brass, engraved, punched, steel tips

Dimensions: Limb length = 22 cm; thickness (max.) = 1,47 cm, length of arc = 13,0 cm

Notes: Scales on arc for "EISEN", "BLEY" (front) and "ZOL", "STEIN" (back) with a screw to hold the arc in place

Measurements of Scales (in mm)

"ZOL"

1

24,00

2

49,00

3

73,00

4

96,50

5

120,50

6

144.5

7

168.5

8

192.0

9

215.5

10

239.0

11

263.5

"EISEN"

[1, not labelled]

50.0

5

85.0

10

109.0

15

123.0

20

136.0

25

145.5

30

155.0

35

162.5

40

169.0

45

177.0

50

183.0

55

188.5

60

194.0

65

199.5

70

204.0

75

209.0

80

212.0

85

217.5

90

222.0

95

227.0

100

230.5

105

234.0

110

237.5

115

241.0

120

245.0

125

247.5

"BLEY"

[1, not labeld

44.5

5

75.0

10

93.0

15

108.0

20

119.0

25

127.5

30

136.0

35

143.0

40

148.5

45

155.0

50

160.5

55

166.5

60

171.0

65

175.0

70

179.0

75

183.0

80

187.5

85

191.5

90

196.0

95

198.5

100

201.5

105

206.0

110

208.5

115

211.5

120

215.0

125

217.5

"STEIN"

[1, not labeled]

76.5

5

130.0

10

163.0

15

187.0

20

205.5

25

221.5

30

235.0

35

246.5

40

259.0

45

269.0

50

287.5