Our Flight Instructor on Duty porcelain sign is an authentic Shell Aviation Products logo reproduction of a bygone era. Made in America, this 9x12 inch steel sign is a great pilot gift for your favorite CFI or collector of aviation memorabilia.
The process to create this porcelain enamel CFI sign is the same method used in the early 1900s. The colors are not paint, but are actually finely ground glass crystals. When the crystals have been fired at 1350° they fuse to the heavy 18 gauge steel plate creating this novel sign. Any slight markings or dings on the sign add to the rustic vintage style.