1980 Porcelain Commemoratives Made for the National Show
 

Color: Cobalt Blue Front Embossing: National     Insulator        Association Back Marking: 048 [The "048" is incised on an unglazed rectangular spot.  Other insulators would have been stamped with a different number.  The number is the same size as the previous year's number.] Quantity Made: 25 Notes: The serial number shown here is part of a complete set once owned by Constance Brown.