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Victorian Eight-Day Marine Chronometer, John Morton & Co., Glasgow, No. 230

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

19th century

This 19th-century Victorian marine chronometer by John Morton & Co. of Glasgow features an eight-day movement set within a brass-bound mahogany case. The instrument has a 4 1/2-inch silvered dial displaying Roman hour numerals, blued steel hands, a subsidiary seconds dial, and an upper wind days remaining dial.

The dial is signed 'John Morton & Co., Glasgow' and inscribed 'No. 230'. Housed in a brass gimbal mount, the square wooden case includes an ivory plaque and is accompanied by a winding key.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Eight-day marine chronometer
Dimensions
21cm square, 23cm high
Case Materials
Mahogany and brass bound case with ivory plaque
Place recorded
United Kingdom
Maker and Location
John Morton & Co., Glasgow
Maker / attribution
John Morton & Co.
Dial Size and Indications
4 1/2 inch silvered dial with subsidiary seconds and wind days remaining

Design

Visible features
• Silvered dial with Roman numerals and blued steel hands • Upper state-of-wind indicator graduated for days remaining and lower subsidiary seconds dial marked No. 230 • Gimballed brass bowl with locking arm inside a mahogany box • Corner compartment in the upper-right interior housing a winding key
Dial and Visual Features
The instrument features a 4 1/2-inch silvered dial. The display is configured with a subsidiary seconds dial and a wind days remaining indicator. The dial layout incorporates Roman numerals and blued steel hands.
Construction and Dimensions
The chronometer is housed in a mahogany and brass-bound case. The dimensions of the case are recorded as 21cm square and 23cm high. The assembly includes an ivory plaque and is provided with a winding key.
Object Identification and Provenance
This 19th-century marine chronometer is identified by the serial number 230 and is signed by the makers John Morton & Co., with an address listed as 87 Bothwell St., Glasgow. The item was listed for auction in February 2024. It is documented as being sold in compliance with UK Government and APHA regulations, accompanied by a non-transferable exemption registration reference.

Identification

Serial number
230
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

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

  • Research required: Internal movement caliber, escapement details, and exterior case sides are not shown in the single photograph.
  • Research required: Ivory plaque mentioned in source description is not visible in this top-down dial view.
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