I have a sweet shooting Monterey in 50# with dark green glass. It is one of the older ones because it has the conquistador decal as a logo, rather than the bow emblem like the nerew ones.
I know some of the cavaliers and other models used a light green (mint green) glass for a while. Which is your? Dark or light green?
I don't have the number but you can call Martin Archery Customer Service. They have a department that has the info on the Damon Howaat boes.