Vintage Scandanavian Silver Bracelet. 830 Silver mark on the underside of the clasp sleeve indicates the above bracelet to be from either Norway or Denmark; both countries used the 830 Silver standard through to the 1950s, when the 925 standard become more and more the norm. Certainly the type of floral design of the above, coupled with strong curlicue motifs, was common to both, strongly influenced by the commercial success of the Georg Jensen firm and its stylized Art Nouveau designs.
A very attractive feature of this style of bracelet is the simple clean effectiveness of the clasp, which not only works well and securely but is also virtually invisible when worn, for the hook of the clasp looks exactly like all the other six plain links.
The “standard” stamp, be it 800 or 830 or 925, indicates the parts Silver content in one thousand, thus 925 indicates 925 parts Silver in one thousand (92.5% Silver purity), where 830 indicates 830 parts Silver in one thousand (83% Silver purity).
Any item of Silver content 80% or more has to be considered proper Silver. The main reason 925 became the dominant international Silver standard after the late 1940s was the commercial might and buying power, and prestige, of America; the U.S. had always used the English 925 standard.