Manufacturer: United Aircraft Products - Dayton, Ohio U.S.A.
A unique shaped pan for baking; very similar to a muffin pan, except the bottoms are raised in the center.
Marked: UAP - United Aircraft Products Inc. Dayton Ohio - Shellaire - Patents 1,921,256 - 1,906,592 - Made In U.S.A.
Size: 12-1/2 inches length, 8-1/2 inches width, 1-1/2 inches depth. - bakes six shortcakes
Condition: used, vintage, use scratches/ as found needs more cleaning.
Comments: Patent number dates to filed July 10, 1931 and was granted May 2, 1933 to Theodore M. Hiester of Dayton, Ohio Assignor to United Aircraft Products, Inc., Dayton, Ohio.