Arthur Umanoff Group of Stacking Chests, USA 1950s
They can be stacked vertically, horizontally or used individually. The listed measurements are for the largest of the cabinets. The medium cabinet is 9.25 inches high and the smallest one is 6.25 inches high, the other dimensions are the same.
H 15 in. x W 17.75 in. x D 14.75 in.