You are looking at an Sonor Phonic ,Original interior bass drum holder.
Vintage 1970's Sonor (Sonor-Phonic) Bass Drum Pedal Z-5137 ~ W. GERMANY
Vintage Sonor (Sonor-Phonic) Bass Drum Pedal
Vintage 80's Sonor Phonic Snare Drum Stand Excellent Condition
Sonor Phonic Tom Drum Mounting Arm Vintage #1324
left and right bass drum feet SONOR SIGNATURE BASS DRUM SPURS MOUNT
