A Gurley 'bucket'-pattern chromium plated anemometer/current-flow meter, in case - 12in.wide; a Royal Indian Engineering College presentation protractor by Stanley in case; and a planimeter of Amsler pattern by Kern & Co in case - 12in.long

细节
A Gurley 'bucket'-pattern chromium plated anemometer/current-flow meter, in case - 12in.wide; a Royal Indian Engineering College presentation protractor by Stanley in case; and a planimeter of Amsler pattern by Kern & Co in case - 12in.long
see illustration (part lot) (3)