Up for sale is this pair of Celestion Greenbacks G12H from 1972. The model T1217 is the 75Hz model and is typically found in Carlsbro amplifiers. They come with the original pulsonic cones. These speakers are in perfect working condition, they have been tested with sinewaves and guitar at high volumes, no coil rub, no rattling and almost identical acoustical properties (sound files may be provided). However, when removing the speakers from the cabinet, one speaker was damaged a tiny bit. It has been repaired and tested with no issues.