Hi guys, newbie here, I'm really happy I found this forum. I've been wanting a japanese sg for a while now and a local guy who goes to the same luthier is selling one. He says its an early 70s model, "probably" made by Ibanez. Thing is there are no markings on it whatsoever - no serial, no mij stamp - save for a Gibson decal that he covered up that was there when he got it. Pups have been swapped but he said the luthier commented that there were markings on the original pups that proves they were japan-made. Unfortunately those pups were sold earlier so I cant confirm. I was hoping someone could shed some light on this or maybe tell me what specific things I should ask better photos of to check (pots maybe?). Any help would be amazing, thanks guys!