I am trying to verify the AGE of an old A/C. It is a Stewart Warner that was made in Lebanon Indiana. The tag says it's a model C-200-CA and the serial number is # 6044385. Any help would be appreciated as it could win the owner a NEW A/C unit !

Call a heating and air supply house such as GW Berkheimer, Michigan Temperature Supply, or Johnstone Supply. Giving them the serial number will tell verify age of the unit.