F. E. Olds was a manufacturer of musical instruments founded by Frank Ellsworth Olds in Los Angeles, in the early 1900s. The company made brass instruments, especially trombones, cornets, and trumpets. Olds was joined by his son Reginald Birdsall (R.B.) Olds in 1920. The company was purchased by Chicago Musical Instruments after World War II, and went out of business in 1979.
Brock & Company Jewelers was the most important jewelry and giftware store in Los Angeles. Founded by George A. Brock in 1903, it was sold in 1964 and the business ended s few years later. It was located at 515 West Seventh St. and had a 2nd location at the Beverly-Wilshire Hotel.
Photomontage advertisement for "Double X Floor Cleaner" with a can of the product on a wooden floor. A line of 14 repeated images of a woman mopping, and a circle of 19 images of a men mopping have cleaned areas of a wooden floor. "Double X Makes Old Floors New" is displayed in three-dimensional letters and "Makes Varnish Vanish" appears on a circular cleaned area of the floor.