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Posted 10/16/2007 9:41 pm
baguiobookstore - I looked at the three coins you posted and based on the pictures I believe they are real. Two of them are trade type coins made after the return to the manufacture of the 8R as a Trade coin and they use standard or semi-standard dies. These two the 1888 As and 1879 Mo. They should both have "dragon's teeth" - very small sharp 1 mm rays on either side of the central downward pointing ray. These small features were an anti-counterfeiting device that was eventually adopted by all the Mexican Branch mints. These features are so small that they do not transfer well onto cast or impact transfer dies. So make sure they are there. Here is a picture:
Image Insert:
The 1863 Go is older made before the transition to the Peso and the dies were made locally at Guanajuato. The coin does look real and matches the matrix (design) employed in 1863 at Guanajuato.
All three dates are considered common and only the 1863 Go is known to me in a counterfeit version. This one does NOT match the counterfeit type.
Therefore, these coins should weigh 26.8 grams or more (theoritical weight is 27.03 grams but wear to this grade can remove 2 1/10s of a gram). They should also be 0.903 fine silver which will ring when tapped. If you can do a Specific Gravity they should be in the 10.1 to 10.3.
If you have other 8Rs or if you need further help just post the pictures or questions.
Image Insert:
The 1863 Go is older made before the transition to the Peso and the dies were made locally at Guanajuato. The coin does look real and matches the matrix (design) employed in 1863 at Guanajuato.
All three dates are considered common and only the 1863 Go is known to me in a counterfeit version. This one does NOT match the counterfeit type.
Therefore, these coins should weigh 26.8 grams or more (theoritical weight is 27.03 grams but wear to this grade can remove 2 1/10s of a gram). They should also be 0.903 fine silver which will ring when tapped. If you can do a Specific Gravity they should be in the 10.1 to 10.3.
If you have other 8Rs or if you need further help just post the pictures or questions.
