![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 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](https://upload.wikimedia.org/wikipedia/commons/f/f7/Aria_Diamond_series_Model_5120_by_Matsumoku_%28SN_0728021%29_%281970-1974%29_hollow-body_bass_guitar_-_a_bolt-on_neck_joint_with_a_plate_on_which_serial_number_was_engraved_%282013-01-16_17.18.13_by_basstpm%29.jpg)
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
![ARIA DIAMOND ACOUSTIC GUITAR, SERIAL NUMBER 6810, COMES WITH SOFT CASE, LIKELY BUILT IN 1968 - Able Auctions ARIA DIAMOND ACOUSTIC GUITAR, SERIAL NUMBER 6810, COMES WITH SOFT CASE, LIKELY BUILT IN 1968 - Able Auctions](https://dygtyjqp7pi0m.cloudfront.net/i/30353/26996822_3.jpg?v=8D4957591052BB0)
ARIA DIAMOND ACOUSTIC GUITAR, SERIAL NUMBER 6810, COMES WITH SOFT CASE, LIKELY BUILT IN 1968 - Able Auctions
![I picked up this Aria Pro II for $50. No serial number at all. Can anyone identify it or tell me which decade it's from? : r/Guitar I picked up this Aria Pro II for $50. No serial number at all. Can anyone identify it or tell me which decade it's from? : r/Guitar](https://external-preview.redd.it/5ddhBGcNmerCXxqKSuZ135-PtT9ZVtvwP-40b1wJx9U.jpg?auto=webp&s=0a722806fe7b2c86064af5d75b4a4826e6268e8d)
I picked up this Aria Pro II for $50. No serial number at all. Can anyone identify it or tell me which decade it's from? : r/Guitar
![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 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](https://preview.redd.it/pgyxenvvju851.jpg?auto=webp&s=d2a6cf201300011e3c162855d5d1b3f02db52652)
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 Classical Guitar Rare 1958 Aria Acoustic Guitar Model | Etsy | Classical guitar, Guitar, Classical acoustic guitar Vintage Classical Guitar Rare 1958 Aria Acoustic Guitar Model | Etsy | Classical guitar, Guitar, Classical acoustic guitar](https://i.pinimg.com/736x/2b/61/f4/2b61f4479256b8d93b0ace2248d183fd.jpg)