20-piece set of Open Reel Tape No. 3 - Brands: SONY, Hitachi, Mitsubishi, Others - Type: Open Reel Tape - Size: No. 3 Quantity: 20 - Condition: Purchased and used approximately 60 years ago. They were then stored due to a machine malfunction. Upon playback, voices, broadcasts, and music were recorded. Since then, demagnetization or recording tests have not been performed, so no guarantees can be made. Please understand that these are vintage, used items. Thank you for viewing.