1905 9 6 DIAMOND CHAIN IND The Steel in DIAMOND CHAINS ad THE HORSELESS AGE 8.25″×12″ page 35
1906 12 2 DIAMOND CHAIN OUTNUMBER, OUTWEAR AND ARE STRONGER THAN OTHERS Diamond Chain & Mfg. Co. Indianapolis, Indiana MOTOR AGE December 2,1906 page 92
1907 2 DIAMOND CHAIN Send for this FREE BOOK on Chain Power Transmissions Diamond Chain & Mfg. Co. Indianapolis, Indiana MOTOR AGE February, 1907 page 345