Screens of different size - Instrument's card

	Virtual Museum - Traversi Museum
	Instrument's card

Instrument Nº - Query criteria NOTICE

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Screens of different size

Dating

1868 - 1874

In a great number of optics experiences it is necessary to have a surface on which pick up images, spectra, etc. It is not possible to always use the laboratoy's walls and for this reason among the various optical devices there are various screens, like these circular ones in paper. The reported dimensions are refered to the bigest of these screen. The other have diameter respectively of 23 cm and 17 cm.

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Screens of different size

Cataloghi	Nº	Voce
Inv. 2016	710	Screens of different size Provisional numbering!
Inv. 1925a	109	Schermi di varia grandezza
Inv. 1870	162	Schermi di varia grandezza

Section

Optics

Window

Conditions

Complete

Working

Intact

Large	47.0 cm (18.5 in)
Width	1.0 cm (0.4 in)
Height	53.0 cm (20.9 in)

Materials

brass, paper

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.