BASF PES18 Triple Play reel to reel 1/4" audio tape 1080m - Retro Style Media
Magnetic Tape for Audio | Museum of Obsolete Media
Reel-to-reel audio tape recording - Wikipedia
File:Vintage Cambridge Portable Transistor Reel-To-Reel Tape Recorder, 3 Transistor Amplifier Circuit, Battery Power Only, Model IM-501, Made in Japan, Distributed by Omscolite Corp., Philadelphia, PA (12075058186).jpg - Wikimedia Commons
Reel to Reel Tapes Complete 7 1/2 & 3 3/4 - You Pick Titles Huge Variety Tested | eBay