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Reckitt and Sons was a leading British manufacturer of household products, notably starch, black lead, laundry blue, and household polish, and based in Kingston upon Hull. Isaac Reckitt began business in Hull in 1840, and his business became a private company "Isaac Reckitt and Sons" in 1879, and a public company in 1888. The company expanded ...
The conservation and restoration of lacquerware prevents and mitigates deterioration or damage to objects made with lacquer.The two main types of lacquer are Asian, made with sap from the Urushi tree, and European, made with a variety of shellac and natural resins.
The Sassanid Persians enjoyed dining and drinking together, a social event that is visible through ceramic, glass, and silver vessels. Elite circles handled silver cups, plates, and bowls on which artisans hammered and chased intricate designs. [16] Sasanian niello is a decorative technique used in metalworking during the Sasanian Empire (224 ...
Cut glass wine glass made of lead glass. Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. [1] Lead glass contains typically 18–40% (by mass) lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO. [2]
Nickel, depending on the concentration, produces blue, or violet, or even black glass. Lead crystal with added nickel acquires purplish color. Nickel together with a small amount of cobalt was used for decolorizing of lead glass. Chromium is a very powerful colorizing agent, yielding dark green [6] or in higher concentrations even black color.
Graphite, also known as "black lead" Mixed with oil or grease as a finish for stoves; Blacklead, another name for the Plumbago drawing style and medium; Blacklead Island, Nunavut, Canada; Black residue left from chimney smoke, cooking fires, etc. "...And the half- washed out traces of smut and blacklead that tattooed her countenance."
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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.
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