BAROMETERS, THERMOMETERS AND RELATED INSTRUMENTS
A pocket perpetual calendar by G. Keller, in the Renaissance style, with silver-coloured metal outer sections with dates of the month and instructions, the gold-coloured inner sections with months, days of the week and zodiac signs, with suspension ring -- 2 1/8in.(5.5cm.) diam., in maker's plush lined leather case

Details
A pocket perpetual calendar by G. Keller, in the Renaissance style, with silver-coloured metal outer sections with dates of the month and instructions, the gold-coloured inner sections with months, days of the week and zodiac signs, with suspension ring -- 2 1/8in.(5.5cm.) diam., in maker's plush lined leather case
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