So pleased to find this site of SG Aficionados. (posted in the wrong thread) I am looking for some help. I have had a Standard SG for many years but know little about its production year. The Gibson Data project does not recognize the number. I know the tuners are not original and neither is the pickguard and I don't have the original case. Just uncertain what I should be looking for short of no confirmation on the serial number (which is inked on back of headstock as 533165). I did see a '66 SG Standard sell on the web which had a number two digits away from my serial number (either 533167 or 533163). Anyhow, wishing I knew what to look for specifically. If anyone can help that would be amazing. Attaching a few pics... any other telltail details I should be looking for would be so very much appreciated !