Blotter - Westinghouse Mazda Lamps (commercial premium), depicting interior scene of woman playing piano with lamp illuminating scene and man leaning on piano with a light bulb on the right side, white border on all edges, "WESTINGHOUSE/MAZDA/LAMPS/(in yellow letters), SHORTEN AND BRIGHTEN/THE LONGER NIGHTS/ (in white letters) SOUTHERN ELECTRICAL CO/Third & E Streets San Diego, Calif./(on white inset with blue border in lower right corner in black letters), reverse side undecorated.
