For sale a George Roberts Bass Trombone (Glendale,California Model) made by Marcinkiewicz. This in silver plate , it has been used but is in very good condition. Best offer over £40.00 to include postage in the United Kingdom. Also available "Ben's Basics" totor/instruction book for bass/tenor trombone + f attachment. Best offer around £20.00 to include postage within the United Kingdom. Contact trombo (Steve Ford) by pm or e-mail (email@example.com) with your offers or any questions. Thank you for your interest.