30 cal ? machine gun belts with tracers

WWII ammo. One full ammo box belted. Stamped FA and mostly 30, and 33, 34. Tracers red tipped. Appears to be 30-06, but not sure what it is. Trying to figure that out, as well as what to do with it.

can you post a Picture of the box ?

Thanks for your request. If you need any other photos, please let me know.

Nice early belt with zincked M1 links.

Thank you for the information.

Please, can you post a picture of all the box markings?

Markings on other side are the same.

Thanks.