CategoriesAMERICAN COIN SILVER
Before the discovery and commercial mining of silver in America, old coinage was the main source, hence the term. As the coins, brought in by migrants from around the world, varied in purity so did coin Silver.
Silver in the early American colonies largely followed the English standard of sterling, even though there was no established means of enforcing it. Tests made on 17th and 18th century American silver returned a standard up to and sometimes over the sterling standard. The case in New York was different as it was colonised by the Dutch, who had 2-3 standards of purity, depending on the period, but generally varied between 80% to 95% . This created a great divergence in the purity of silver brought there. As there was no system of hallmarking such as that imposed in England, or Holland, American silversmiths would stamp their wares with their initials or their whole name in a cartouche, occassionally accompanied with a device, such as an eagle, flower, kings head, etc. There was, nevertheless, no indication or guarantee of purity.
After the Revolutionary War, however, the US Mint fixed the standard for coins in 1792 at 89.2% fine and in 1837 it was raised to 90% fine. The difference between the two standards led to the stamping of silver made in America with various symbols of purity: COIN, PURE COIN, DOLLAR, DOLLARS, STANDARD, PREMIUM and even STERLING. These marks would usually be accompanied with a stamp of the makers name or initials. There were also pseudomarks, marks closely resembling English hallmarks (not to delude, I am sure), occassionally with the letters D, B, G, C etc. What these letters stood for no one is sure, if anything. Maybe they were the silversmithÕs surname initials, though some have ventured Dollar, Best, Genuine and Coin, consecutively. Resarch as to the identity of these silversmiths is still underway.
As the 19th century progressed the demand for silver led to an explosion of silversmiths shops catering to this need in cities such as Boston, Philadelphia, New York and Charleston. Often, these shops were just retailers who would also stamp their names (and addresses). In this case the manufacturer would add just his initials in a small cartouche alongside the reatilers name. Most of these manufacturers are identifiable, such as AC in a diamond for Albert Coles, W&H for Wood and Hughes, G.W&H for Gale, Wood and Hughes, and so on.
This is where the pseudomarks have caused problems, especially when seen in conjunction with silversmiths who have known to have produced large amounts of silver. Are these pseudomarks additional marks of the silversmith whose name accompanies them or are they the marks of , as yet, undiscoverd silversmiths. This debate gets heated in the Southern States, if a collector has a good, for instance, Charleston silversmith stamped alonside an unidentified mark. Was the article made in Charleston, made elsewhere but sold in Charleston, never ever saw Charleston because the combination of the name and pseudomarks may refer to another unidentified maker?
All silver wrought in England, Scotland and Ireland had to bear the following marks:
For further research, city marks, provincial marks and makers marks please check the bibliography.
The Continent comprises dozens of nations with widely varying assaying and hallmarking laws and standards. It is too large a topic to cover accurately and comprehensively in a short essay. Essentially, most Continental countries have 2-3 Standards of purity ranging from 0.950 (95%) down to 0.750 (75%). The different standards are generally indicated with the figure 1 or the letter A on the assay mark for the High or 1st Standard, 2 or B for the next, etc. Alternately, the standard could be stamped in decimal form such as 916H or 830S. Russia has a unique system of grading where the number 84 denotes a fineness of 0.875, 88 is 0.916, and so on.
Most books are specialised, pertaining to the country of publication and usually in that country's language. The book I recommend is a useful guide and pretty comprehensive introduction to a complicated and, often, confusing subject.
American silver is, more or less, divdided into two camps, as far as collectors are concerned, which is why I have formed the two categories: American Sterling and Coin Silver. The Sterling Standard was established by federal law in 1868 under pressure from a group of leading silversmiths, such as Tiffany, who had been using sterling since their entrance to the silver market in 1851.
Sterling is a metal alloy containing about 92.5% silver and 7.5% copper or other base metals. Lowering the quantity of silver, say to 90%or lower, with the commensurate increase in the base metals, as in Coin Silver or even down to 80%, as in some continental countries, renders the final product harder and more resilient to the wear and tear of everyday use. Increasing the quantity of silver to 95% or higher has the effect of making the final product softer and more malleable. It is easier to work with and hence more amenable to more demanding manufacturing processes as chasing, engraving and moulding. The 95% Standard was used by the French and some American silversmiths such as Gorham for their Martele line. A higher standard, 95.84%, was also adopted by Gorham for their Martele line. In England this standard is termed the Brittania standrad and was first adopted in london in 1696 to counter the melting down of coinage. After 1720 that standard was no longer compulsory, though silversmiths would occassionaly use that standard for special lines.
American Sterling is variously marked, apart from the makers mark:
| (a) | (b) | (c) | (d) | (e) | (f) |
| English Sterling 925-1000 |
Sterling Silver 925-1000 |
Sterling | 925/1000 | 11 oz | 11-2 |
Mark (a) was used by Tiffany before the steling standard was adpted to assure the prospective buyer that he was being offered real sterling and not the lower standard being utilised by the majority of other american silversmiths of that period.
Marks (b), (c) and (d) have been used by most silversmiths up to the present day.
Mark (e) and (d) were used by the Baltimore silversmiths at the end of the 19th century. It was the only city in America that had an assay office, established in 1814 and it set the standard for silver at 11oz pure silver per 12 oz Troy alloy. This computes to 91.7% pure silver, which was above the national requirement at that time. Kirk used the 11 oz mark up to 1880 even though his silver, certainly after 1868, was of sterling standard. Using this numeric system, sterling silver would have 11 oz 2 pennyweights of pure silver, hence the 11-2 mark, used by Warner after 1868.
I am confining this topic to just my area of expertise, India, China & Japan, and within this subset I am forming two further categories: Colonial and Post-Colonial. Although Japan remained unscathed, both China and India experienced a period of colonisation by England which had a dramatic effect on their domestic silver production, creating the cultural periods, namely Indian Colonial and Chinese Export.
Reference books:
1. Indian Colonial: Indian Colonial Silver by Wynyard Wilkinson
2. Post Colonial Indian Silver. Indian Silver by Wynyard Wilkinson
3. Chinese Export Silver by Forbes, Kernan & Wilkins
4. The Chait Collection of Chinese Export Silver by J.D.Kernan
Japanese Silver.
OLD SHEFFIELD PLATE & SILVER PLATE
Old Sheffield Plate is the term used to describe articles of flat and hollow-ware made of copper coated with silver by fusion NOT by the electroplating process. In Old Sheffield Plate, a sheet of silver is laid upon a sheet of copper and then fused together by the pressure of rollers. The resulting fused metal was then formed, chased and engraved to whatever style or purpose. The production of Old Sheffield Plate began in about 1743 and had a successful run of just under 100 years.
Following soon after the discovery of electricity, the electroplating process was perfected with Elkington & Co., being one of the first to use this process commercially, taking out a patent in 1840. The discovery of electroplating so cheapened and facilitated the production of plated wares that the production of Old Sheffield Plate soon petered out. Some diehards struggled on against overwhelming odds until 1852 when the city of Sheffield listed just one Old Sheffield manufacturer in the business directories.
Unfortunately, as Old Sheffield Plate continued to be popular, even today, many electroplate manufacturers would stamp their articles with such titles as: Silver on Copper, Sheffield Plate (omitting the Old), Real Sheffield Plate, Sheffield, etc.
1. History of Old Sheffield Plate by Frederick Bradbury.