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Self winding clock
Wood, metal, glass
Purchased by the Astronomy Club in 1985 at an estate sale, the clock was missing the dial and door but still retained the wooden case, paper instructions, wires, hands, pendulum, and clock mechanism. In 2011, Dr. Bruce Hannon…
Purchased by the Astronomy Club in 1985 at an estate sale, the clock was missing the dial and door but still retained the wooden case, paper instructions, wires, hands, pendulum, and clock mechanism. In 2011, Dr. Bruce Hannon…
Sidereal clock, no. 22
Wood, metal, glass
Wooden mahogany case, there was a spare wooden case, height 59.25 cm, width 44 cm, depth 20 cm. The clock is now in the collection of the Adler Planetarium in Chicago
"The Riefler clock has two interesting characteristics. …
Wooden mahogany case, there was a spare wooden case, height 59.25 cm, width 44 cm, depth 20 cm. The clock is now in the collection of the Adler Planetarium in Chicago
"The Riefler clock has two interesting characteristics. …
Master clocks
Wood, glass, metal
There are two 60 beat with a Graham dead-beat escapement with micrometer adjustment. Magnet wound, spring drive, self-regulating movement, 63 1/6” x 19 ¼” x 7 5/8”, plain glass door, 12” Arabic dial, white with black numbers,…
There are two 60 beat with a Graham dead-beat escapement with micrometer adjustment. Magnet wound, spring drive, self-regulating movement, 63 1/6” x 19 ¼” x 7 5/8”, plain glass door, 12” Arabic dial, white with black numbers,…
Cabin sidereal clock
Aluminum, brass, glass
There are two sidereal clocks, both are electric. The first is 9 ½-inch diameter with a 8-inch dial, black metal base, brass and glass, 3 hands.
The second smaller clock 5 ¼-inch diameter, tag indicates a date of…
There are two sidereal clocks, both are electric. The first is 9 ½-inch diameter with a 8-inch dial, black metal base, brass and glass, 3 hands.
The second smaller clock 5 ¼-inch diameter, tag indicates a date of…