This is an old recipe clipping from what looks to be a coupon mail-out since there is an address label on the other side as well as coupons mentioned. There is no date, recipe is typed below as-is.

YOU CAN BAKE A BETTER CAKE WITH HOMOGENIZED SPRY

Only Homogenized Spry brings you this one-bowl way to make the LIGHTEST, HIGHEST CAKES!

FELICITY BLACK-AND-WHITE CAKE

2 cups sifted cake flour
1 1/4 cups sugar
3 1/2 teaspoons baking powder (or 5 teaspoons tartrate baking powder)
1 teaspoon salt
1/2 cup Spry
1 cup less 2 tablespoons milk
1 1/2 teaspoons vanilla
3 egg whites, unbeaten

Sift flour, sugar, baking powder, and salt into mixing bowl . . . Drop in Spry . . . Add 2/3 of milk, then vanilla, and beat 200 strokes (2 minutes by hand or on mixer at low speed). Scrape bowl and spoon or beater . . . Add egg whites and remaining milk and beat 200 strokes (2 minutes by hand or on mixer at low speed) . . . Bake in 2 deep 8-inch Sprycoated layer pans in moderate oven (360°F.) 25-30 minutes . . . Spread Chocolate Frosting between layers and on top and sides of cake.