Mesa/Boogie Guitar Amp Catalog 198x
from the '70s to '90s, Scanned Catalogs of Electric Guitars, Basses, Guitar Amps, Effects - Published in Japan
Mesa/Boogie Guitar amps catalog 198x
MARK-III and The S.O.B. series
200W RMS The Coliseum Series 300, Rack Mount D-180, Speaker Cabinets
"201085" means 20 Oct. 1985, perhaps.