A label in the box reads: "Thos. L. Ainsley, James Street, Cardiff.
HEATH & COY., Limited, Crawford, Kent"
A. Dobbie & Son, Ltd., were in business from 1896 to 1903,
offering chronometers and other instruments for nautical use.
Ref: T. N. Clarke, A. D. Morrison-Low, and A. D. C. Simpson, Brass &
Glass. Scientific Instrument Making Workshops in Scotland (National Museums
of Scotland, 1989), pp. 228-234.