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The design for water wheel driven by perpetual motion
ARP23A15_484

The design for water wheel driven by perpetual mot...

The design for an air and weight driven by perpetual motion
ARP23A15_483

The design for an air and weight driven by perpetu...

Cassiobury Park clock by Leonard Tennant
ARP17A33_333

Cassiobury Park clock by Leonard Tennant

Demonstration on the stage of a crowded auditorium
ARP10A02_355

Demonstration on the stage of a crowded auditorium

George Graham
ARP07114_011053P

George Graham