The First Generation

The Pilot ACE

The English Electric DEUCE

DEUCE Document Archive

DEUCE People. Mirror - John Barrett's Site

The Bendix G15

Numerical Control on the Bendix G-15D at Northrop Aircraft, by Max Brown

The Sydney University SILLIAC

Hair planimeters

Hatchet planimeters

Early Amsler planimeters

Willis and Lippincott planimeters

Coffin planimeters

Schnoeckel's planimeter

The New Improved Slideing Rule

A timber merchant's Rule?

Barker Family

Truscott Family