I recently made another wonderfull swap, but one of the coins seems to be off. In the swap was included a Portuguese
3 Reis from 1764 . It is not a very rare coins and many are found online (for sale and sold). The coin I got though was very underweight (2.56g) compared to the numista coinpage (3.8g !). Online I have found weights between 3,0g and 3,94g, but none yet weighing as little as mine. Is there any source for the weight range for this kind of coins? The coin is also rather black than copper-coloured, but that doesn't seem to be unusual for this coin (
sale of 3 coins with different colours), it also has some "nice" verdigris which I guess also points to copper.
Here are pictures, it is F/VF, so weight loss from wear is is unlikely to be the reason:
Is it just a normal underweight pre-standardisation coin? The swapper claims such differences are normal, and I have no reason to distrust him as we've already had several good swaps. Just looking for a second (and third, fourth, fifth, ...) opinion.
