Gibson 1960 guitar and amplifier catalog. Page 28. Details of the GA-15RV Maestro 15 RV, GA-16T Maestro Viscount accordion amplifiers
$31
$1486
$700
$2499
$1000
$34
$665
$230
$4800
$2000
$2000
$800
$2290
$65
$950
$99
$400
$800
$250
$399