Taxco Medal. José Martínez Viedma (1761)
Prices updated: August 2026
Silver · Proclamation and oath · 1761
Silver · Proclamation and oath · 1761
How much is the coin Taxco Medal. José Martínez Viedma (1761) worth?
The market value of the coin Taxco Medal. José Martínez Viedma (1761) is not yet documented with enough data to give a firm range. Weigh and measure your piece, compare it against the specifications, and check the forum for a second opinion.
The real price depends on four factors: the grade of preservation (a circulated piece is worth the low end of the range; an uncirculated one, or one still in its official blister pack, the high end), the finish (satin vs mirror/proof), the rarity within the series based on the mintage, and the metal spot price on the day of the deal when the piece is silver or gold. Check the value-by-grade table above and compare with equivalent pieces before buying or selling.
Where to buy or sell this coin?
Browse the national directory of numismatic shops or the community forum to trade directly with other collectors.
Historical context
Dated 1761, this medal belongs to the proclamations of Carlos III, whose proclamation was extended across New Spain during 1760 and 1761 as the news reached each region. The king had ascended the throne in 1759, and his reign would drive the Bourbon reforms that transformed the colonial administration.
It comes from Taxco, the legendary silver mining camp of present-day Guerrero, where in those years the fortune of families like the Bordas was flourishing. It is associated with the name José Martínez Viedma, probably the authority or the notable miner who funded the issue as a show of loyalty to the king.
It is signed by the engraver F. Casanova. That a mining camp like Taxco struck signed medals of fine workmanship speaks to the economic weight of silver in the life of the viceroyalty: those who extracted it had resources to spare to join the royal ceremonies in style.
Description
The "Taxco. José Martínez Viedma" medal was struck in 1761. It is made of silver, measures 36 mm in diameter and weighs 23.4 grams, the work of the engraver F. Casanova F.. In the specialized catalog it appears referenced as Grove, Medals of México, I #K-58.
Being a silver medal, its value has a floor: the precious-metal content (23.4 grams). Above that, what pushes it higher is condition, how short the issue was, and interest in the theme it commemorates (Taxco. José Martínez Viedma). A piece with no wear and its original case is worth considerably more than one that has been handled.
How to identify and value this medal
- Confirm the metal. It is silver; weigh it to estimate its fine-metal content.
- Read the legend and the motif. It commemorates "Taxco. José Martínez Viedma," which defines its historical interest.
- Check the condition. No scratches or harsh cleaning, with natural patina.
- Look for the case and the certificate if it had them: they add collector value.
Explore more pieces in the Mexican numismatics catalog and learn to read the marks in the guide on how to identify Mexican mints.
Value range of this piece
Value range without enough data for this piece.
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