TAG, Radiator ID, Soldered to tank bracket, About half the 65-68s used these, If the car had a radiator with the ID number de-bossed in the top tank or on the LH side strap this tag was not used
1968-1968 COUGAR 390, M/T
1968-1968 MUSTANG 390, 428, M/T
WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.