National Corporation light bulb, 1930s

National Corporation light bulb ad, 1930s, originally uploaded by Gatochy.

Click image for 568 x 800 size. Scanned from Taschen's "Japanese Beauties".

"For your rooms" - For your work, for your reading - if you stay in the bright room, you feel so bright - also, your use less energy - why not use Japanese domestically produced light bulbs?" National Corporation (now is Toshiba). (Thanks to Paula Wirth for translating!)