THIS FRATERNAL SERVICE AWARD PIN SHOWCASES THE CLASSIC IOF LOGO: A STYLIZED "F" OVER A GLOBE, ALL ENCASED WITHIN A DISTINCTIVE TRIANGULAR BORDER. -- HALLMARKS: STAMPED "CTO 10K" ON THE REVERSE. "CTO" IS THE TRADEMARK FOR O.C. TANNER, A PREEMINENT MANUFACTURER OF HIGH-QUALITY RECOGNITION JEWELRY.
