If you have a copy of the Federal Standard 595a, the IPMS Color Cross-Reference Guide lists the closest match to No.9 Bronze Green as being FS 14050 with the following notes: "Matte antiglare panels on fuselage & nacelles, ca. 1938. Interior of enclosed cockpits and seats, passenger compartments" and "Is a little darker & glossier than 14050. Color name may have later been changed to Dull Dark Green."
Apparently Bronze Green was used in both gloss and matte, but the FS 595 has only 14050, not 34050.
You should, however, be able to achieve a color match by mixing your own starting with the closest color available offered by Model Master.
In addition, if you can get your hands on a copy of The Official Monogram US Army Air Service & Air Corps Aircraft Color Guide 1908-1941, there is a large color chip of Bronze Green in the rear of the book
Pete