A list accompanying the "negs of plots" images identifies this as a brush plot over the north tunnel [in] Devil Canyon, an area north of San Bernardino.
Related to Los Angeles Times article, "Orange Fete Doors Open Amid Cheers: Thousands Jam Show Building: Merriam Welcomes Visitors; Silver Theme of Exhibits at San Bernardino," 22 Feb. 1935: 1.
Two women stand beside the Ontario display at the National Orange Show. The display consists of a base covered in oranges and a metallic paint and is topped with a cup filled with oranges. Other displays are visible in the background.
The State Department of Agriculture display at the National Orange Show. The display features a diorama labeled "Border Inspection," which shows the image of a car being inspected by border patrol. On the bottom, there are two displays, one of which is labeled, "Shipping Security."