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
$495
$4500
$20000
$12600
$3000
$20000
$13999
$3399
$3895
$12999
$10000
$3499
€4500
C $25000
£3500
£3771
€4398