Pair 2x Vintage 1977 Celestion G12M T1220 12 25w Guitar Blackback Speaker Driver. A brilliant pair of original Celestion G12 T1220 12 speakers from 10th & 16th December 1977. They work great and came out of a working cabinet. From what I can gather, these have been re-coned in the past as no original cone stampings. At The Music Locker we will do all we can for you to get the instrument you want.You're more than welcome to come and have a play on this, coupled with one of our vintage guitars! The item "Pair 2x Vintage 1977 Celestion G12M T1220 12 8ohm 25w Guitar Blackback Speaker" is in sale since Thursday, August 6, 2020. This item is in the category "Musical Instruments\Guitars & Basses\Guitar Amplifiers". The seller is "themusiclocker" and is located in Ripley, Derbyshire. This item can be shipped worldwide.