Found this at an early site in SE Virginia which has produced double digit colonial silver. Looks like it has a Mexico City mint mark, but can someone give me a better estimate of the age other than "1600s"? Thanks!
Mexico City, it is; and it appears to be 'two bits' of an 'eight bits' coin.
The year would be located to the left of the mintmark .
It appears to end in "3"; I'll keep looking.
First guess is during the reign of Filipe V
Don........
I changed my mind: The "3" is in the third position of the date; the last number is obscured. The "1" is at the 9 o'clock position off the 'M' and a remnant of the '7' is at the 9 o'clock position off the 'o', above the 'M'. The '3' is more obvious and the last number is not visible to me. Still, it fits within the reign of Felipe V.
Don.....
PS: One thing concerns me: I believe between the mint mark and the date should be a series of small 'dots' that circle the coin; I don't see it on this coin.
Like Don mentioned it was minted during the reign of Felipe V as evidenced by the House of Bourbon shield element on the Hapsburg shield. With a partial date of 173X, it narrows it down as Mexico transitioned to milled coinage in 1732.
Nice Mexico cob!
Not part of a milled coin... Its all there.
The letter below the OM to the left..(Mexico city mint mark) is the assayer mark if you can make out that letter it will help but like mentioned above it will be 1730 or 31
The weight would certainly help but it looks like a two reale to me.
Likely assayer "F" Felipe Rivas Angelo.
There's a wreck not far from my house..1733 fleet where many just like that were found near the Jupiter Inlet fortunately yours is in better condition and likely fuller weight because it was not in saltwater
Actually, the cob type 1/2R and 2R were minted through 1733, the 1R through 1732; while the 4R cob style stopped after 1731. And I agree as GatorBoy mentioned above, it may be the entire coin we're looking at.
Don.....
The Mexico City Mint came into compliance during the year 1732 some cobs were struck during the first part of the year and by the end of the year they had switched to all milled coinage.