My jaw just dropped on the floor. Wow. Great design for sure. I have always wanted the silver version of this coin. You have a gold 1. Envy is thee word. The grade is amazing too.
Well I respect your opinion and I assure you I have no intimate knowledge of the object. However a well respected archeologist I know who specializes in Spanish relics (I live in NE Florida, about 30 miles north of St Augustine, so we don’t lack in Spanish relics!) disagrees with you. Personally I don’t care either way. It’s a nice find.
Yes, I agree it being nice. I won't say I have a lot of background but always like a challenge. Well, maybe I do have a lot of background as I have collected world coins for over 50 years and am somewhat familiar with the Mexican series. Possibly three college degrees and two from Stanford did not hurt in all likelihood. Chemistry and crystallography did not hurt along with a minor in the Classics. So, that item would be a copper-based metal content with minor corrosion. XRF will confirm alloy. The medallic "obverse" is modeled after Hidalgo and other heroes, the reverse calendar stone image is many times reproduced on coin-like objects and especially in the mid to late 20th century. The tines are seen on MANY silver rings from Mexico - also during this period. Anyway, I will go ahead and stand on the opinion given before and don't mind being open to anything the archeologist may have to directly contribute.
The first modern Silver Bullion was the Mexican Onza. It was first issued in 1949 and strucked intermittently using the same 1949 date until 1978. The Una Onza, as it was know, was classified as a Medallic Silver Bullion Coinage. The coin was issued in an attempt by Mexico to reestablish itself back into the world trade-dollar market. The coins were minted in 0.9250 Silver, 33.625 g, 0.9999 oz. ASW, and a diameter of 41mm. All had a reeded edge. The 1949 obverse featured a screw press at the center with the legend, CASA DE MONEDA DE MEXICO and 1949. The mintmark o/M was above the press. The reverse has a balance scale at the center, with PESO/33.625/GRAMOS, above the left arm of the scale and LEY/0.925 below the pillar. The legend read UNA ONZA TROY = 480 GRAMOS DE PLATA PURA *. 1949 Mintage 1,000,000 The obverse of the later years had the same screw press and legend as the 1949, except the date was placed to the left of the press and no mintmark. The later reverse showed the same balance scale, but the legend now read UNA ONZA TROY DE PLATA PURA. LEY/0.925 was now above the scale arm and PESO/33.625/GRAMOS was below the pillar. The mintmark o/M was at the bottom. The 1978 had 2 varieties. The Type I has a wider, (3mm), space between the words in DE MONEDA, and the Type II, with a smaller (2.75mm), spacing. Mintage was a low 280,000 across the 2 types, making it the key date of the series. The 1979 also had 2 varieties. The Type III, where the left scale pan points to the U in UNA, and the Type IV, where the pan points between the U and N. Mintage was 4,508,000. The 1980, Type V, had the highest mintage of the series at 6,101,000. Varieties were 1980/70 and 1980/02 overdates. This short 4 coin series is an easy one to complete. Collecting all 5 varieties and overdates will add a little more challenge.
I picked up some very nice Mexican coins at a coin shop last month. I wish I could say I paid melt for them, but they knew what they had. Still, it was worth it because you just don't see these every day like this. I wish the scans here could capture the shine of these coins. Every one looks like it was made yesterday.
Here's the second group, along with a 2 centavos from Puebla that I got last week. This is a local issue from the civil war period.
1909 5 Centavos marked as VF and I think that is correct. But close to XF. Snake across the eagle breast is not quite completely separate from the feathers. 5x $ difference in grade jump from VF to XF.
When I first started collecting world coins, Great Britain and Mexico were the two main focus areas as I tried to collect everything. I eventually gave up on getting everything but I still have a ton from both countries.