Please Note; that most
modern & unmarked as to purity gold 1865 Maximillian Mexican pesos are fantasy coins, or wedding coins and are only gold plate(hge-heavy gold electroplate...4 atoms thick instead of the usual 2

).
I have earlier examples('70s to perhaps '95) that have the gold content marked on the coin. These coins would be solid 8kt to 14kt and can be marked on the either side. If the coin is not marked I would think it's only plated and see many a novice get burned on
ebay...way too many to warn. They should be checking feedback...the warnings are rite there to read.
...a plethora of tiny, modern, cheap like borsch fantasy Emperor Maximillian Mexican gold pesos(bagged by hundreds) can be had. If they ain't marked they ain't even worth postage at cost(gold plated base metal). They were also mentioned in the medals/medallion/token topic several times. These types of trinkets are also now produced as Krugerrands, St. Gauden Double Eagles, and others... just as little trinkets though. So these gold minis are not of value to the majority people here.
Here's a picture of an older marked one... marked as to gold content that is. But they are tiny, small as a pencil eraser.
Some specs on the one pictured;
8kt
625mg
10mm
