Capital L (in cursive script) mark:
Libbey Glass, Inc., Toledo, Ohio (1888-to date)
The “cursive L” trademark is frequently seen embossed on the bases of various tableware items, especially tumblers and other drinking glasses, barware, wine glasses and stemware for home use as well as commercial and institutional use.
Julian Toulouse, in Bottle Makers and their Marks (1971), page 327, illustrates the cursive L inside a “double circle” or “double-ring” as introduced circa 1924. A cursive capital L inside a three-segmented circle (i.e. a broken circle, or circle with 3 gaps) is shown with a 1937 introductory date; that same mark is also mentioned on page 49 of 400 Trademarks on Glass (Arthur G. Peterson, 1968) as introduced in 1937 but discontinued sometime previous to publication of his book. This 1937 date is presumably based on a check into the U.S. Patent and Trademark Office records.
The “cursive L” within an ordinary circle or ring is shown as being introduced in 1955 by both Toulouse and Peterson. In actual practice, this mark often appears backwards if viewed from outside the glass, looking at the base, which means of course it appears correctly when looking down through the inside.
In more recent years the cursive L is typically plain, not inside a circle. This mark is often very faint, sometimes completely invisible or “smeared”, and can sometimes be likened to the appearance of a short curly hair embedded on the surface of the glass. In a few cases it might have an appearance vaguely resembling the cursive letter “Q”, or perhaps a gracefully designed looped numeral “2”. This “cursive L” mark is currently still in use (as of 2016).
(If anyone has information pinpointing the exact date when the circle was removed from the mark (or if items are still being made with the circle) please contact me through the “email” button at the bottom of any page on this site).
Libbey has made many millions (or more likely, billions) of glass tumblers, water glasses, tea glasses, goblets and other drinkware over many years, and it is likely that the majority of households in the USA have at least one Libbey-made glass in their kitchen cupboard! All Libbey glassware is not marked, although much of it is.
Libbey has recently purchased Crisa (2006) and much of that glassware is sold under the “Crisa” brand name.
Libbey used several other trademarks in their early years of glass production which are not commonly seen, such as on cut glass tableware items. Check this site for an article on Libbey with more information on their early marks timeline:
For a brief summary of their corporate history, check out Libbey’s history webpage here:
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