2 reale

Found my first older Spanish silver cob today. I believe its a 2 reale from the Potusi, Peru mint but i don't know enough about cob coinage to determine a date range. HELP!

Days are unfortunately getting shorter. Showed up at a new spot today at 4 pm. This place looks like something out of a movie. Old trees etc. Anyways, second diggable signal of the day rang in at a steady 80 on the At Pro. I'm thinking its a copper penny all day, yet I notice it's at 6-8"...