Railroad grade pocket watch, 1900s
Record status
Individual type · research required
Period
1900s
Identifier : scientific-american-1905-02-25 ( find matches ) Title : Scientific American Volume 92 Number 08 (February 1905) Year : 1905 ( 1900s ) Authors : Subjects : scientific watches croton patent railroad chicago tion automobile scientific american american american supplement san juan total number hot air ten cents egg watch liberty bell rotating anode rocky mountain Publisher : View Book Page : Book Viewer About This Book : Catalog Entry View All Images : All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: es were naturally rather crude;this is shown by the few specimens still in existence (see Pigs. 1 and 2). They were circular in shape (notoval or egg-shaped), and entirely made of iron. Inplace of. the round balance we find a straight onecalled foliot. Like almost all wa Documented from an openly licensed real-object photograph on Wikimedia Commons; only the details stated by that source are recorded here. Remaining specifications are marked research required rather than estimated.
Physical characteristics
- Material
- Gold, Silver, Steel, Brass (as described on the source photograph page)
Technical characteristics
- Escapement
- Verge escapement
Design
- Case type
- Railroad grade
- Case decoration
- Enamel, Engraved, Filigree
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.
Research required
- Maker not stated on the source photograph page; requires a signed movement or case examination.
- Jewel count and calibre not documented.
- Serial-number dating, case dimensions and weight remain untranscribed.
- No catalogue reference number is asserted; standard horological catalogues have not been transcribed for this specimen.