"Pioneer Age" - This is commonly used when referring to the Chronological Time-Line for Comic Books during the following years:  PIONEER AGE 1500's-1828

 

"Victorian Age" - This is commonly used when referring to the Chronological Time-Line for Comic Books during the following years:  VICTORIAN AGE 1828-1883

 

"Platinum Age" - This is commonly used when referring to the Chronological Time-Line for Comic Books during the following years:  PLATINUM AGE 1883-1938

 

"Golden/Atom Age" - This is commonly used when referring to the Chronological Time-Line for Comic Books during the following years:  GOLDEN 1938-1945/ATOM AGE 1946-1956

 

"Silver Age" - This is commonly used when referring to the Chronological Time-Line for Comic Books during the following years:  SILVER AGE 1956-1970

 

"Copper Age" - This is commonly used when referring to the Chronological Time-Line for Comic Books during the following years:  COPPER AGE 1984-1992

 

"Modern Age" - This is commonly used when referring to the Chronological Time-Line for Comic Books during the following years:  MODERN AGE 1992-PRESENT

 

"Short Print" or "SP" - This is commonly used when referring to the rarity of an item.  Some items/merchandise have a shorter print/production run than other similar items/merchandise.  Sometimes this is identified by a serial number, however, when the print/production run is not identified by a Serial #, it is then provided by the manufacturer of the items/merchandise.  Other phrases with similar meaning are..."Limited Production" or "Lower Distribution".