Thank you for looking. This is a vintage [Celestion] G12M Greenback Pre Rola era, made in 1966. It is compatible with 8Ω. The person I purchased it from said they could not determine if it had been reconed. I believe you can enjoy the classic, aged Greenback sound. Pre Rola era 8Ω, 20W models are quite rare and do not often appear on the market. I purchased it for approximately 150,000 yen. As I am also listing this elsewhere, I apologize in advance if it sells out and I have to cancel your order. I am also listing many other effectors and other items, so please take a look if you'd like.