Up for auction on September 6 is this Brenner painting at Brunk auctions is Asheville, NC:
The best market for Brenner's paintings is in Kentucky so, if you are interested, you may be able to get a good deal. In recent years, interest in Brenner's work has been increasing. $2000 is the opening bid with an estimate of $4000-$8000.
"(Kentucky, 1838-1888), "Boulder Canon, Colorado", original label verso with title, size and "No. 2", signed lower left "Carl C. Brenner/1882", oil on canvas, 30-1/8 x 25 in.; modern gilt wood and composition frame. Original stretcher and tacking edge, craquelure, slight stretcher marks, light grime, backed with plywood by artist but not laid down. Provenance: The Estate of the Late John Boone, Owensboro, Kentucky"