Sold for:
$411

Barograph No. 30, with rotating clockwork drum, eight pressure-discs, recording pen and dovetailed horizontal mahogany case with glazed front panel and handle stamped Julien P. Friez, Belfort Laboratory, Baltimore, MD. , wd. 11 in.


Skinner

Auctioneer:
Skinner

Date:
2005-05-03