Grandma Moore's Lemon Bars

Grandma Moore's Lemon Bars

Mix together the following until crumbly.  Press into a 9x13 pan and bake at 350 degrees for 25 minutes:
1 cup soft oleo (I'd use real butter!)
1 /2 cup powdered sugar
2 cups flour
pinch of salt

Mix together the following and pour onto baked crust. Bake at 350 degrees for 25 minutes. When cool, sprinkle with powdered sugar:
4 eggs
2 cups sugar
1/2 teaspoon baking powder
4 tablespoons flour
6 tablespoons lemon juice