I got a hold of a Peavey Dyna-Bass today, and its serial number is 04220868, I know Dyna-Basses were made in the 80's and 90's, but an exact year would be pretty cool to know
Q: When was my Peavey product manufactured?

A: To find out when your Peavey product was manufactured, please send an email request to customerservice@peavey.com. Be sure to include the serial number of your Peavey product within the email message.

Best way to find out. From the Peavey site.