Soviet Help identify this cap badge

[rhines]

Oval cap badge from the second world war with red CCCP banner at the top, a red star in the middle with crossed rifle and propeller over the red star and a gas mask below the red star. The right edge of the badge is a wheat imprint, the left edge of the badge is gear teeth. The inscription on the bottom of the badge reads OCOABИAXИM. Any help you could give would be greatly appreciated, I will try to get a picture up as soon as possible.

Edited October 26, 2009 by rhines

[Komandir RKKA]

Oval cap badge from the second world war with red CCCP banner at the top, a red star in the middle with crossed rifle and propeller over the red star and a gas mask below the red star. The right edge of the badge is a wheat imprint, the left edge of the badge is gear teeth. The inscription on the bottom of the badge reads OCOABÈAXÈM. Any help you could give would be greatly appreciated, I will try to get a picture up as soon as possible.

It's not a cap badge - it's an active member of ÎÑÎÀÂÈÀÕÈÌ badge.