Two divergent lens - Instrument's card

	Virtual Museum - Traversi Museum
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Two divergent lens

Dating

November 1876

Web page

Two divergent lens

Cataloghi	Nº	Voce
Inv. 2016	763	Two divergent lens Provisional numbering!
Inv. 1925a	254	Due lenti montate su piede d'ottone
Inv. 1870	425	Due lenti montate su piede d'ottone

Section

Optics

Window

Conditions

Complete

Working D

Intact

Large	14.0 cm (5.5 in)
Width	10.0 cm (3.9 in)
Height	36.0 cm (14.2 in)

Materials

brass, lead, glass, lacquer

Sources

Bouchardat A., Physique élémentaire avec ses principales applications, Germer Baillière, Paris, 1851, pag. 405, fig. 154
Desbeaux E., Fisica Moderna, Casa Editrice Sonzogno, Milano, 1892, pag. 167, fig. 142

The additional indications which integrate the items of the conservation's state have the following meaning: (?) = maybe complete; M = maintenance; P = partial; R = restored; D = used for teaching; NC = not checked; X = impossible to verify.

In order to avoid that instruments' cards without the english description text of the device be directly selected, I added a special filter with which only the complete cards are shown in the menu. Anyhow all the partial english instruments' cards (with instrument's dating, dimensions, state of conservation...) can always be seen even if they haven't the english description text. To read this uncomplete cards is sufficient to click, for example, on an instrument's picture or on the word "View" of the table column called "Card" every time they appear in the other pages of this database.