the cannon dial consists of a faux ivory or bakelite horizontal plaque, on which is mounted a miniature brass cannon and two adjustable brass brackets supporting a burning lens, and a brass gnomon. The plaque is inscribed "Victor Chevalier Ing Brevele quai de C'horlage 77 a Paris". The bracket arms are set to the solar declination, so that when it is noon, the burning beam of light fires the gun. 6 x 8-1/4 x 6-1/4 in. (15.2 x 21 x 15.9 cm.)
the cannon dial consists of a faux ivory or bakelite horizontal plaque, on which is mounted a miniature brass cannon and two adjustable brass brackets supporting a burning lens, and a brass gnomon. The plaque is inscribed "Victor Chevalier Ing Brevele quai de C'horlage 77 a Paris". The bracket arms are set to the solar declination, so that when it is noon, the burning beam of light fires the gun. 6 x 8-1/4 x 6-1/4 in. (15.2 x 21 x 15.9 cm.)
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
