The original Heisey Glass Airedale dog is generally identified in Heisey references as catalog number 1 in the Animals and Figurines line, with dealers using the short piece code "AIR" for this figurine. In practice, collectors, the Heisey Collectors of America, and major dealers tend to rely on the name "Airedale Dog" plus that short code rather than a pattern number when listing or cataloging this specific figurine. It is approximately 5 3/4" tall at the ears and approximately 7" long.
It weighs 1 lb 10 oz. It has no flaws: no cracks, chips or bubbles. I have owned it for 20 years.