Technique

The size is indicated in the 1904 Boston catalogue and memorandum in Boston Public Library. It suggests a vertical composition but this might be misleading.

Venice at Sunset, Portland Museum of Art

Sunset; red and gold - The Gondolier, Fogg Art Museum

Possible candidates if it was in horizontal format would be Venice at Sunset [M.0741] and Sunset; red and gold - The Gondolier [M.0806]