File:PSM V39 D633 Flint glass furnace.jpg

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Description Flint glass furnace
Date
Source Popular Science Monthly Volume 39
Author Unknown authorUnknown author
Permission
(Reusing this file)
Public domain

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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Extracted image from book, to greyscale, cropped whitespace. The original can be viewed here: Popular Science Monthly Volume 39.djvu: . Modifications made by Ineuw.

Captions

Glass Optical Furnace, Guinand Model for Flint-glass Casting

Items portrayed in this file

depicts

media type

image/jpeg

data size

200,833 byte

height

1,032 pixel

width

970 pixel

checksum

7c9629d01b6baad783c3cabd08f3cfbe8433c031

determination method or standard: SHA-1

File history

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Date/TimeThumbnailDimensionsUserComment
current04:02, 13 October 2015Thumbnail for version as of 04:02, 13 October 2015970 × 1,032 (196 KB)IneuwCleaned image and improved contrast
20:34, 27 November 2010Thumbnail for version as of 20:34, 27 November 2010978 × 1,034 (195 KB)Ineuw{{Information |Description = Flint glass furnace |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_39.djvu/633 |Date = 1891 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} {

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