Reproduction Auster screen badge. Solid aluminium. Raised rim and lettering. 18.5mm diameter, 2.3mm deep with 3mm diameter x 4mm long spigot on back. As originally fitted to the ends of various designs of Auster screen. Diameter suits the ends of our Auster aeroscreen part numbers 234, 234-SCUT and 899. Afix with epoxy two part, metal to metal adhesive. If purchased with an aeroscreen we can fix in place for you with your instructions.