Gibson 1975 Custom Order & Electric Acoustics catalogue. Page 10. Details of two electric acoustic guitars: one well-established model, the Gibson Super 400CES and one relatively new guitar, the Howard Roberts Custom, launched in 1973. The Super 400 CES was also available as a purely acoustic guitar, the Super 400, seen on page 6 of this catalogue. The Howard Roberts Custom was solely available as an electric acoustic.
1975 US zone 1 prices were as follows: Super 400 CES: $1499, Howard Roberts Custom $899
$2000
$495
$1999
$4400
$549
$12995
$19950
$22995
$15000
$49999
$9995
$6800
$13900
€3400
€4444
€4500
C $25000
£2500
£3500