| 1324 | The oldest record of a goldsmiths guild in Prague. |
| 1562 | Ferdinand I approved the guild rules of Prague goldsmiths. All items
weighing more than half a hrivna (a Prague hrivna weighed c. 253 grams;
64 Prague groschen were made from one hrivna) had to be submitted to the
guild for assay. The items had to be marked as follows:
1. town mark; 2. maker's mark (mostly in monogram) . |
| 1776 | New guild regulations for Prague goldsmiths were introduced. Provision for the election of three craftsmen to hallmark silver pieces. The Prague goldsmith's guild was the so-called Land Guild. i.e. all goldsmiths in the Kingdom of Bohemia were obliged to observe its regulations. Only 13 lot silver was permitted to be used. A special hallmark was decreed for lower standards of fineness. |
| 1785 | 15 lot silver was allowed to be used and a new mark was introduced for it. |
| 1788 | The following purities for silver were stipulated by law: 13 lot (=
812.5/1000) and 15 lot (= 937.5/1000). Hallmarking was still carried out
by appointed guild masters. Items were marked with three stamps:
1. the maker's mark 2. the mark of Bohemia (for Prague), or the mark of the town where the maker worked 3. the mark of fineness. |
| 1806 | A basic change occurred in the hereditary Austrian lands in hallmarking precious metals: the right to mark the products was taken from the guilds and given to the state. (For details on this and subsequent changes see Austria.) |
| 1921 | The former Austrian marks of 1872 were abolished and Czechoslovak hallmarks were introduced. Permitted fineness: 950, 900, 800 and 750/1000. |
| 1929 | Introduction of new marks and new purities of 959, 925, 900, 835 and
800/1000. These marks were valid until 1940.
Slovakia, as part of the former Austro-Hungarian Empire, belonged to Hungary until 1918 and was subject to Hungarian regulations. |