Marshall 4x12 box type 1935. Loaded with 30 w. Pre- Rola Greenbacks. This speakers are 8 ohm, Greenbacks covers are missing. Code stamped on the frame T 1234 AC15 v, what means january 1970. Original 102-003 cones. The speaker cab is from '75 and this pre-Rola speakers are not original. Cab on castors.