refractor

13.2019820 Manseau reproduction of Galileo’s telescopes & their 17th-century display stand

On 01 Apr, 2020 By rosenfel@chass....
  1. catalogue number: 13.2019820;
  2. name of artifact: Manseau reproduction of Galileo’s telescopes & their 17th-century display stand, now at the Museo Galileo, Florence;
  3. date of production: 2009;
  4. materials of manufacture: Optical glass, wood, textile, “Carrara” marble, paint;
  5. maker: Réal Manseau, Drummondville QC;
  6. provenance: purchased from Réal Manseau;
  7. condition: excellent condition;
  8. notes:
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    11.20191212 7x50 Southern Pacific Instruments (SPI) Satellite Telescope

    On 31 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 11.20191212;
    2. name of artifact: 7x50 Southern Pacific Instruments (SPI) Satellite Telescope;
    3. date of production: 1960s;
    4. materials of manufacture: optical glass, copper-alloy(?), steel, plastic(?);
    5. maker: made in Japan for SPI;
    6. provenance:
      1. Dave Trott;
      2. purchased on Astromart from Dave Trott by the DTM founder;
    7. condition: Good;
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    10.2019824 7x50 Gun Sighting Telescope

    On 30 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 10.2019824;
    2. name of artifact: 7x50 Gun Sighting Telescope;
    3. date of production: ca. 1939-1945;
    4. materials of manufacture: copper-alloy, steel(?), black rubber, and glass, the metal parts finished with black-crinkle enamel, and other blackening agents, in a fitted pine box painted silver grey;
    5. maker: Canadian Kodak Co. Ltd., Kodak Heights in Toronto (at Eglinton Ave. and Weston Road), also known as the Kodak Mount Dennis Campus;
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    9.201995 Sighting Telescope REL 22C Mk. II 1941

    On 26 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 9.201995;
    2. name of artifact: Sighting Telescope REL 22C Mk. II 1941;
    3. date of production: 1941;
    4. materials of manufacture: optical glass, lacquered copper-alloy, & steel(?);
    5. maker: Research Enterprises Limited (REL), Leaside ON;
    6. provenance: gift of the DTM founder;
    7. condition: complete, and with its original case. Optics excellent, and eyepiece retains its reticle;
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    8.201987 Brashear "Bracebridge" 4.5-inch refractor

    On 25 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 8.201987;
    2. name of artifact: “Brashear “Bracebridge” 4.5-inch refractor”;
    3. date of production: post 1905, probably ca. 1907-1908 (according to Bart Fried, email to R.A.R. 2019 June 19);
    4. materials of manufacture: optical glass, copper-alloy OTA, copper-alloy and cast-iron crescent-style equatorial mount with slow-motion arm, and hard-wood tripod;
    5. maker: signed “JOHN A. BRASHEAR CO. LTD./ALLEGHENY, PA., U.S.A.” (on the mount);
    6. provenance:
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    6.2019724 Batek-Jaegers Telescope

    On 23 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 6.2019724;
    2. name of artifact: “Batek-Jaegers Telescope”;
    3. date of production: ca. 1960-1967(?);
    4. materials of manufacture: 6-inch O.G. f/10 achromatic Jaegers doublet, with 3-inch f/5(?) Jaegers guide scope, one Jaegers’ finder scope, and one anonymous finder scope (copper-alloy, probably early 20th century), thirteen (13) eyepieces, filters in leather filter case, two Barlow lenses, equatorial mount and RA drive, pier, & plywood box for the aluminum tubes;
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