• Serial No. 5337 Serial No. 5337
  • Serial No. 5061 Serial No. 5061
  • Serial No. 4037 Serial No. 4037
  • Serial No. 3738 Serial No. 3738
  • serial no. 2738 serial no. 2738
  • Serial No. 1878 Serial No. 1878
  • Serial No. 1401 & Pure Tone Trade Mark Stamp Serial No. 1401 & Pure Tone Trade Mark Stamp
  • Rolled Tone Holes & Pad Details Rolled Tone Holes & Pad Details
  • Right-Side-Upper-Portion Right-Side-Upper-Portion
  • Right-Side-Lower-Portion-2 Right-Side-Lower-Portion-2
  • Right-Side-Lower-Portion-1 Right-Side-Lower-Portion-1
  • Right-Side-Lower-Portion Right-Side-Lower-Portion
  • Right-Side Right-Side
  • Right-Side Right-Side