Do You Have Japanese WWII-era aircraft blueprints or engineering drawings?

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From The Flying Heritage Collection:

The Flying Heritage Collection is working to assemble missing technical drawings of some of Japan’s most iconic combat aircraft and engines.  Many of the sets of drawings were lost in the last months of the war or destroyed soon afterwards.  The FHC will provide a finder’s fee for delivery of full (or nearly full) sets of drawings of these famous machines.  Do you hold vintage WWII-era blueprints or engineering drawings of the following?

Mitsubishi A6M “Zero” fighter

Mitsubishi G4M “Betty” bomber

Nakajima Ki-43 “Oscar” fighter

Mitsubishi Kasei 11 engine

Nakajima Sakae 12 or 21 engine

Nakajima HA-115 engine

Tell us about the Japanese plans that survived the war.  Contact the Flying Heritage Collection at: blueprints@flyingheritage.com

Photo Credit: http://www.seattlepi.com/business/boeing/article/Newly-acquired-Japanese-Zero-set-to-fly-Saturday-3619660.php