Black and white concept art, Rockwell illustration from the early 70’s represents the almost-final B-1A configuration, from back when being very supersonic was the goal rather than being stealthy at low altitude. Most obvious differences between this and the as-built B-1A are the ride control vanes (the small canards) and the discontinuity in sweepback angle between fixed and movable portions.
The full image has been made available as a thank-you to APR Patreon and Historical Documents Program patrons at the $4 and above level, placed in the 2023-12 APR Extras . If interested in this piece or if you are interested in helping to fund the preservation of this sort of thing, please consider becoming a patron, either through the APR Patreon or the Monthly Historical Document Program.