Rare Ballooning/ Aircraft Miniature Barograph /Altimeter
Interesting miniature Barograph retailed by Negretti & Zambra only measuring 4 3/4 inches x 3 1/4 inches.
Chart has a cycle of 6 hours. Comes with ink and in its original box and key and also has spare charts. Stamp mark on cover is Brevette S G D C
Carved Walnut Mercury Thermometer Stand
Lovely carved walnut thermometer stand Ho sing a spiral/snail bulb Mercury thermometer on a bone scale reading in degrees Farenheit. Height is 13 1/2 inches by 7 inches wide at base
Zeiss Ikon Barometer
Chromed Zeiss Ikon Barometer dating around c1930. the chrome is in good condition for its age with slight rubbing in places. In fully working order.