US$ 247.50
The device used gravity by suspending a patient (most likely a child) from the balance arms
supposed to be hitherto unnoticed by British ornithologists'
Natural size and at x25
It was the only major project to be undertaken in London by the famous engineer Thomas Telford
Anno Aetatis suae 79
Snowcovered landscape Golden Gate Strait The device used gravity by
US$ 247.50
US$ 125.00
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US$ 475.00