I recently aquired this amp, late 50s or early 60s, I believe. I have searched but cannot find any information or even any mention of this brand. It is a "Glengale". Pretty large, the case measures about 34x27. It has one 15" speaker - 2 inputs - reverb - one wired-in switch and one plug-in switch. Anybody know where this was made? Value? It's in great shape and has a really pretty green/gold vinyl covering. Any information is appreciated.