Fender 1970 guitar and bass catalog. Page 59. Details of the Fender Bassman amplifier.
The Bassman was effectively a lower powered version of the Super Bassman on page 58; a 50w - compared to the 100w of the Super Bassman. It had six tubes powering a 2x15" cabinet; fitted with either Fender or JBL D-140 speaker cones.
1970 pricing was as follows:
Bassman (Fender speakers) $565
Bassman (JBL speakers) $712.50
An outstanding favorite with bass players the world over
$850
$1349
$10999
$2995
$1078
$2400
$1200
$700
$1000
$600
$8495
$499
$999
$31
$1000
$1750
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$75
$4125
$2195