This relatively modern Peruvian coin just became the most valuable in my collection

It happens to be from my birthyear. Only because it has 1.3 ounces of bullion, the recent spike in spot gold to over $4,000/oz just made this my most valuable coin, even though I have dozens that are more historical.

(I paid $3,700 for this last year. Its melt value is $5,468.88 as I type this. What a ride, huh?)