August 28, 2019
August 23, 2019
August 21, 2019
August 16, 2019
- New library addition:

Opercula
(London Coal Plates) 1929 (reprinted 1965)
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- Opercula (London Coal Plates) ·
sketched by Shepherd Thomas Taylor (under pseudonym
"Æsculapius Junior"), introducion by Raymond Lister,
1929 (reprinted 1965)
August 13, 2019
- New library addition:
- Flat Glass ·
Arthur E. Fowle (Libbey-Owens Sheet Glass Co), 1900
May 21, 2019
- Two new library additions:
May 10, 2019
- New prism glass pages:
- Hobbs' references to "Maximum Light Glass" led to these UK
companies being listed:
- Maximum Light Window Glass Ltd
- British Prismatic Light Ltd
- Updated prism glass pages:
April 21, 2019
- New prism glass pages:
- Updated prism glass pages:
- New patents transcribed:
- Article about American Luxfer in The Economist, August 13, 1898
- New library addition:
April 5, 2019
March 31, 2019
March 24, 2019
- New vault light pages:
- Updated vault light pages:
March 13, 2019
- Three more library additions:
- Updated pavement light pages:
- New listings for prism glass companies:
March 3, 2019
- Added in situ gallery for Phoenix, Arizona
with pics of FLW 'flower' prism tiles at the Luhrs Building (courtesy
Jeff Wurstner) and long-neglected pics of a vault light replacement
project. I've lost track of who submitted the latter— can anyone
ID these?
- New UK vault light listing:
February 29, 2019
February 23, 2019
February 16, 2019
February 4, 2019
January 27, 2019
January 22, 2019
January 19, 2019
January 16, 2019

Istituo Sanatoriale «Forlanini», Roma
Doppia cupola, isolante acustica in
vetrocemento armato a copertura canile.
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January 13, 2019
January 9, 2019
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