Marshall Model #1973 JMP Lead & Bass 20 Year1973 Serial Number6645EModel1973Watts20Folders Amp Archives Marshall 18 and 20 Watt Models 20 Watt Models Model #1973 JMP Lead & BassModel #1973 JMP Lead & Bass 20 1973 SN 6645E 11Images Leave a Comment Cancel replyYou must be logged in to post a comment.