Hartley 3904
Tag on underside of unit:
Hartley
Model 3903
Serial No. 200
Volts 220250 -- Freq. 50Hz
AMP 1.0
Made in Australia
Printed tag on back of unit reads:
Michael Chevallier
Item # 173
Collection
Australia
Category
2.3.2.1 Desktop Computer
2.3.2.0 Digital Computer, 2.3.0 Digital Data Processor, 2.0 Data Processing Devices