Original vintage optical industry trade magazine ad for WM. GAERTNER & COMPANY of Chicago, IL. A 362 Chronograph with Two Recording Pens. The clock is fitted with a friction governor which allows perfect regulation so that the records come out in a beautiful straight line. Old 1923 laboratory equipment advertisement.
wm gaertner company 1923 a352 chronograph with two pens vintage ad
- Product Code: s310
- Length: 9 inches
- Width: 6 inches
- Views: 13
- Availability: In Stock
- $20.00
$15.00
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