Where can you lookup the serial number for a international backhoe to find the year of manufacture?

I work for a company called Top Bid that publishes Serial Number Handbooks and a Serial Number Guide online search. You can go to www.topbid.com for more information and how to purchase one of our products. We cover International and Dresser equipment as well as all major manufacturers. If you have a specific question you can call us 1-800-633-5953. I hope that helps.