ARIA PRO II PE no serial number. Help. | My Les Paul Forum
File:Aria Diamond series Model 5120 by Matsumoku (SN 0728021) (1970-1974) hollow-body bass guitar - a bolt-on neck joint with a plate on which serial number was engraved (2013-01-16 17.18.13 by basstpm).jpg - Wikimedia Commons
Received what I believe to be an old Aria guitar, it sat in a garage for many years unused, I have looked all over and can not find a serial number, even
Vintage Aria Concert Guitar Model AC-6 Serial Number 856 | eBay
ARIA DIAMOND ACOUSTIC GUITAR, SERIAL NUMBER 6810, COMES WITH SOFT CASE, LIKELY BUILT IN 1968