Vintage porcelain enamel advertising sign. Featuring a bold mid-century. Industrial design of light bulbs. In blue, white, and yellow tones. This rare sign was used to promote Philips’ line of Argenta electric bulbs, known for reliability and brightness. Graphic art style and striking color palette. Make this sign a standout example of 1940s-1950s European advertising design. The board is heavy, single-sided enamel on metal, with text reading. On both illustrated bulbs. Perfect for collectors of. Vintage electrical, lighting, or advertising memorabilia. Philips Argenta light bulbs. Porcelain enamel on metal. Illustrated light bulbs in blue, white, and yellow. 16 x 9 inches (41 x 23 cm). Blue, white, and yellow. Likely European (Belgium or Netherlands). Vintage advertising sign / Lighting collectible.