Multi-Tool?

[lptools]

Hello, I found this unusual looking tool today. The only visible marks were H O on the flat of the long arm. Overall length when open is 6", and measures 4-1/8" closed. The middle piece looks like a screwdriver, the other small arm looks like a 2 pin spanner on one end, & a single pin spanner at 90° to the arm, plus a raised area with a curved groove. The round end pivots, not far, &  there are 2 1/16" diameter holes on the sides of the opening. Motorcycle tool kit? Thanks, Lou

[Plyerman]

I don't recognize it, but it may have been for servicing a military rifle of some sort. Combination tools were often part of the armorer's kit for machine guns and some service rifles.

[RWalters]

Plyerman is on the right track. It appears to be an M3 combination tool as issued with the M1 Garand rifle. A fellow named Bill Ricca has a website  (Google William Ricca Surplus). On that site he has a page detailing and dating the variants of this tool.

[lptools]

Hello, Thanks for the info, you guys are the best. Bill Ricca identified this as an MA31 Combination Tool. The H O stands for the Holst Company. Thanks again, Lou