Free for the price of a padded envelope and postage: MODEL RU-17 DUAL COIL SET LOW RANGE Q HIGH RANGE G TYPE CW 47107 SERIAL 4752 MANUFACTURED FOR NAVY DEPARTMENT - BUREAU OF SHIPS BY WESTERN ELECTRIC CHICAGO. ILLINOIS CONTRACT 84530 CONTRACT DATE 21 APRIL 1941 This is printed dark blue and white lettering on phenolic material. Jim Falls K6FWT