DMM 67366

Museum: Deutsches Museum, Munich

Title: Sector by Meurand

Inventory number: DMM 67366

Signature: "Meurand AParis"

Date: To be established. 

Material: Brass

Dimensions: Lenght of limb: 166 mm; width: 16 mm. 

Description: See Schneider, 1970, p. 90.

Preliminary examination of the metallic scales: Planetary symbols on the metal scale, indicated a "Les Metaux". Two other scales, each on a face, when the sector is opened at 180 degrees, on the border, without titles. 

References: Schneider, Ivo: Der Proportionalzirkel: Ein universelles Analogrecheninstrument der Vergangenheit. Deutsches Museum: Abhandlungen und Berichte. 38. Jahrgang 1970, Heft 2. München, Düsseldorf 1970, p. 90.

Maurice, Daumas: Les instruments scientifiques aux XVIIe et XVIIIe siecle. Paris, 1953, p. 371.

Measurements of Scales (in mm)

"Les Metaux"

☉ [Sun, Gold]

 119

♄ [Saturn, Lead]

 140

☽ [Moon, Silver]

 145

♀ [Venus, Copper]

 152

♂ [Mars, Iron]

 158

♃ [Jupiter, Tin]

 162

Scale on the side of the metalic scale

1/4 32
1/2 40,5
3/4 46,5
1 51
2 64
3 73,5
4 81
5 87
6 93
7 98
8 102
10 110
12 117
14 123
16 128
18 134
20 138
22 142,5
24 147
27 153
30 158
33 163
36 168
40 174
45 181
55 [sic] 187,5
50 [sic] 194
60 199
64 204

Scale on the other side

1/4 33
1/2 42
3/4 48
1 53
2 67
3 76
4 84
5 90
6 96
7 101
8 106
10 114
[no value]
14 121
16 128
18 133
20 139
22 143
24 148
27 152,5
30 159
33 165
36 170
40 174,5
45 181
50 188,5
55 195
60 201
62 207
64 212