The state-quarter craze is helping to fuel demand for Air-Tite Holders Inc. coin holders, and the company has responded by more than doubling its work space. The North Adams, Mass., company spent ...

Commerce, Calif. — In a deal between companies that make products used by collectors, Ultra PRO International LLC has purchased Air-Tite Holders Inc. Commerce-based Ultra PRO announced the deal ...

NORTH ADAMS — A small, family-owned company that has made plastic coin holders for more than 40 years has been sold to a California-based firm that manufactures materials for photo and scrapbooking ...