Gibson RD Standard bass
1978 'RD Series by Gibson' catalogue page 7
1978 Gibson RD guitar and bass catalogue. Page 7 - details of the Gibson RD Standard bass: neck specifications, body specifications and electronic specifications. The RD Standard bass was (like the RD Standard guitar) a completely passive instrument, and was the least expensive instrument in the RD range, with a 1978 list price of just $549 (compared to $649 for the active RD Artist bass).
The RD Standard was only available in ebony or natural finishes, both as shown here.