They may be serial numbers.
What are the best paying type of jobs for ABA Paralegals?
Chat with our AI personalities
the percentage of metal it is, if its silver its 82.5% silver
The numbers on a silver jewelry clasp are used to measure the precious metal content of the piece. For examples if the numbers on a clasp read 999 then the piece consists of 99 percent silver, and 1 percent other metal. If the letters on the clasp read STER, then the piece is sterling silver usually 92.5 percent 7.5 percent other metals.
Numbers are used to indicate the valency of the metal in the compound. By convention Roman numerals are used so that the number isn't mistakenly confused with the numbers present in the formula.
Numbers are used to indicate the valency of the metal in the compound. By convention Roman numerals are used so that the number isn't mistakenly confused with the numbers present in the formula.Read more: Why_is_Roman_numerals_used_in_the_names_of_compounds_that_contain_transition_metals
They indicate the laminated metal core upon which the windings are wound.