Marshall Model #1917 JMP PA 20 with Columns Year1971 Serial Number0282CModel1917Watts20Folders Amp Archives Marshall 18 and 20 Watt Models 20 Watt Models Model #1917 PA 20Model #1917 JMP PA 20 with Columns 1971 SN 0282C 9Images Leave a Comment Cancel replyYou must be logged in to post a comment.