Gibson 1960 guitar and amplifier catalog. Page 23. Details of the Gibson GA-30 Invader, GA-20 Crest, GA-20T Ranger, GA-18T Explorer amplifiers
$750
$600
$1100
$175
$1400
$2000
$900
$2350
$3995
$1335
$2700
$1500
$700
$1750
$2100
$999
£3999
€4574