History See encyclopedia.
1937-became part of Dutch United Glass works.
Maastricht-1925 merged with de Sphinx. Maastricht/de Sphinx merged with Leerdam
Designers
de Bazel 1915
de Lorm 1917
Lanooy 1919
Lebeau 1922-23 died in Dachau
Berlage 1923- founded UNICA STUDIOS
Copier 1923- founded SERICA glass
Meydam 1935
Heesen 1943
Frank Lloyd Wright
Styles
pre-1912 single mass produced table glass
1912 arrival of Cochius -> art glass
Heavy cut x-tal table glass
Berlage-yellow glass tableware
1922-23 Lebeau designed a large range, mottled, iridescent, cased, crackled & elongated forms.
1923 Copier-> thin glass colourless or tinted in ribbed form. Functionalist vases opaque with inner blown spirals. Thick walled vases with internal bubbles or seaweed effects. Irregularly facetted vases. Vases of Persian & Eastern styles & perfect sphere vases.
1930's minature stylised glass animals usually frosted, later ones clear are still produced today
UNICA-one off pieces
SERICA-limited editions
Marks
Often unsigned
UNICA LEERDAM UNICA H37
1926-30 A-F
1930-32 G-N
1933-34 O 1-200
1935-36 O 200-300
1937-38 O 300-662
1939-47 P-Z- continues with doubles letters
History
Styles
History
Another factory at Pantin
after WWI joined with another factory at Pantin. See encylcopedia.
Styles
pre 1894 Coloured glass, marbled gold flecked, mottled, streaked, gilt enamelled, clear x-tal bottles in the shape of people, bldngs or boats
1894-patent application of coloured glass flowers, carved cornelian-multilayer beige-pink glass + cut flowers floral, fruit & enamelled leaves flowers & fruit-
2-3 layer cameo
shallow cameo
1908-acid granulated, yellow, green, brown cameo cut, floral pattern + gilt.
Cameo etched poppies to red underlay.
Clear glass painted all over and marked LEG-
1919-Psuedo-cameo painted
1920-1930 Floral cubist designs
Decorating shop opened in 1900's. Run by Paul Daum in 1920's. Main designer - Auguste Heiligenstein (1923-26)
Heiligenstein designed polychrome enamels on blanks supplied by Daum. Also press moulded glass. All enamel is signed. See encyclopedia.
Styles
History
Factory partly destroyed by fire in 1930. Closed during WWII & final shutdown 1947. See encyclopedia.
Designers
Max Ritter von Spaun (1879-1908)
Leopold Bauer (1872-1938)- Adolf Beckert (1884-1929)
Maria Kirschner (1851-1931)
Kolomann Moser
Prof Powlony
Carl Lederle (1900's)
Styles
Glass thickish often with ground pontil, polished covering a large area of the base.
1890-1900 Imitated semi-precious stones- & introduced iridescence
1893 Columbia (iridescent with head of Columbus)
Pavonia:- heliotrope glass merging to amber,
Persica:- red merging to amber- Both with a lustre background with gold overlay & releif decorations.
Alpenrot & Alpengrun opaque red &/or yellowish green glass merging to sky blue decorated with guilding.
Kamelinrot, red & coloured glass with lustre + roccoco designs in relief
1898 deep gold, blue metallic lustre
1899 Papilon:- multiple closely clustered coloured iridescent dots, Ruby (Red), Candia (Gold), Cobalt (Blue)
Phenomenon:- iridescent with glass threds pulled at random across the surface
1901 Conch shapes in Papillon, Actglas:- clear & coral finish. Rusticana:-serpentine decoration. Pampas:- creamy, opaque & opal merging into a clear base with decorated plant forms in green glass.
1902 Calliope iridescent blue-green glass with applied flowers. Formosa:-blue glass threads over green background. Kreta:-free formed with applied ornaments & more Phenomenon.
1900-1914 Black & white glass- High quality iridescence(Maria Kirschner) overlaid with silver (Carl Lederle), cameo(rare), plain glass sometimes with pipped rim.
Bauer-60 designs, iridescent pure simple designs
Kirschner-270 designs, geometric, recherche, each designed for a particular flower
Beckert-multiple layer acid etched producing layered contoured glass-
Marks
Marks in pontil or cameo
pre WWI marked Bohemia & Austria
post WWI marked Czechoslovakia
Difficulties.
Air trapped satin glass + gilding mkd PATENT 9159 on base called Octopus (1888) mistaken for English
Commisioned work from Taschner of Prague possibly others during 1920's
Palme-Konig mistaken for Loetz.
Unclear which attributions are correct despite apparent authority of many sources.
Bakalowits & Sohne, thin glass, lighter in weight, moulded base good quality unmarked
Quezal-pontils ground, moulded when metal mounts used
Vases identical to Loetz made by Adolf Zache in Goblanz using galvanised silver designs by Carl Lederle.-
History
Styles
Styles See encyclopedia.
Styles