Original wooden model of Francis Galton's "trace computer" by R. & J. Beck
Original wooden model of Francis Galton's "trace computer" by R. & J. Beck, London
Original wooden model of Francis Galton's "trace computer" by R. & J. Beck
Original wooden model of Francis Galton's "trace computer" by R. & J. Beck, London
Details
Parts
Wooden components of model of Francis Galton's "trace computer" by R. & J. Beck
Wooden components of model of Francis Galton's "trace computer" by R. & J. Beck, London.
