Ads
related to: identifying glassware markings numbers pictures and information
Search results
Results From The WOW.Com Content Network
How to Identify Glassware Perhaps the first thing to know is that it is difficult to discern what kind of glass a piece is, according to Robinson, because glass has been produced in so many ...
Pontil scar on the base of a free-blown glass bowl. A pontil mark or punt mark is the scar where the pontil, punty or punt was broken from a work of blown glass.The presence of such a scar indicates that a glass bottle or bowl was blown freehand, while the absence of a punt mark suggests either that the mark has been obliterated or that the work was mold-blown.
The great majority of the company's production was in the form of glass bottles many of which were beer bottles, milk bottles, and many glass medicine bottles in a variety of standard sizes. Bottle collectors identify the company's products through the mould numbers and distinctive letter-in-a-keystone mark on the base of the bottles. [2] [3]
The international glass code is based on U.S. military standard MIL-G-174, and is a six-digit number specifying the glass according to its refractive index n d at the Fraunhofer d- (or D 3-) line, 589.3 nm, and its Abbe number V d also taken at that line.
A fill line on a German wine glass. Germany has had a number of weights and measures acts specifically addressing volumetric markings on glassware. Local and state laws have since been superseded by the federal Mess- und Eichgesetz ("Measurement and Calibration Act"), which in turn was updated to implement the EU directive.
Only glass products containing at least 24% lead oxide may be referred to as "lead crystal". Products with less lead oxide, or glass products with other metal oxides used in place of lead oxide, must be labeled "crystallin" or "crystal glass". [4] In the United States it is the opposite - glass is defined as "crystal" if it contains only 1% lead.
Shipping symbols [2] from ISO standard 780 "Pictorial marking for handling of goods" [3] or ASTM D5445 "Standard Practice for Pictorial Markings for Handling of Goods" [4] which depict shipping boxes as squares with rounded corners: "Fragile": the silhouette of a broken wine glass "This end up": a horizontal line with two arrows pointing up
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!