Based on the serial number (46350) I believe it was manufactured around 1969.
Trumpet - Selmer Radial 99 C/Bb Large Bore in Bright Silver, Excellent Condition
Radial Headbone VT Amp Head Switcher for Tube Amps
Peavey Radial Pro 501 snare 14" x 7"
Radial ProRMP Reamp
Radial Headbone Valve/Tube Head Switcher VT
