This Aladdin Whip-o-Lite shade is from 1935. The official design number on it per the 1935 Aladdin brochure on "Exquisite Decorated Aladdin Whip-o-Lite Shades" lists it as No.182-rose. It was available in four different designs: No. 179-white, No. 180-amber, No. 181-green and No. 182-rose.