Ravine by Unknown Artist, oil on canvas, no apparent signatue, circa mid 20th century, from the estate of art collector Albert Burnette Roberts, possible attribution to "L. Hoffman," framed - 39" x 32" 
 
I wish I knew more about this painting. It seems to be Symbolist in style (see Ludwig von Hofmann's work for comparison) but it is not old enough to be from that period. Moreover, the figures are realistic, not stylized and romantic.  All of which leads me to believe this painting is a postwar piece, possibly American or European in origin. However, what makes this painting more intriguing is that it was once in the collection of Albert Burnette Roberts, an art collector famous for re-discovering A Study of St. Jerome, a lost 17th century painting by Flemish artist Anthony Van Dyck, which Roberts found in an old New York barn. That painting was later sold at Sotheby's auction in 2023 for $2.5 million. According to his obituary, Roberts (New York, 1932-2021) studied law and public administration at Cornell. He was a member of Nelson Rockefeller’s staff where he worked on the expansion of New York’s State University system. He rose through the ranks to be secretary of the Assembly Ways and Means Committee and, later, as director of the Senate Committee on Taxation. By 1985, he had become an aide to Senator Roy Goodman. Roberts was one of the first in government to recognize the coming AIDS pandemic and was instrumental in the establishment of the New York State AIDS Institute within the New York State Department of Health. Additionally, he was at the forefront of the development of the New York State Kidney Disease Institute. After retiring from public service, Roberts plunged into another activity which appealed to his interests and began seriously collecting art. He joined the board of the Albany Institute of History and Art and donated many art works to them. He also set up the Albert B. Roberts Foundation to give financial support to artists and other creatives as well as charities close to his heart. He amassed a large art collection, incluidng the famed Study of St. Jerome, and, per the obituary, "Roberts was convinced that there are scores of other paintings in his collection that may also one day be authenticated as masterpieces. He was running, he said, “'an orphanage for lost art that had suffered from neglect.'”