Beautifully engraved SPECIMEN certificate from the Public Utility Associates, Inc.. This historic document was printed by the American Banknote Company in 1930 and has an ornate border around it. These certificates are normally stamped "Specimen" or they have small holes spelling the word specimen. Most of the time they don't have a serial number, or they have a serial number of 00000. This is an exciting sector of the hobby that grown in popularity and realized nice appreciation in value over the past several years.