Locomotives and Rolling Stock Components
1923
Photographic Technology
1924
Electronic Components
-1925
Microscopes
1925
c. 1923
Astronomy
Fixtures & Fittings from Railway Buildings
Time Measurement
1923-1925
c. 1925
Railway Shipping
Road Transport
Gas Industry
Mechanical Power Transmission
Radio Communication
Telecommunications
Electricity Supply
Psychology, Psychiatry & Anthropometry
Printing & Writing
Coal Mining
Scientific Instruments & Research
c1925
Meteorology
Nursing & Hospital Furnishings
after 1924
Electricity and Magnetism
Weighing & Measuring
Experimental Chemistry
Domestic Appliances
Hand and Machine Tools
Industrial Metrology
c.1924
Coins and Medals
Sound Reproduction
Passenger Comforts