Similar to the Alouette II, the Merckle SM-67 V3 is the third prototype of the first German-built turbine-powered helicopter, developed in the late 1950s and first flown in 1961. However because of the earlier availability of the Alouette II, the Bundeswehr opted for that type. The second prototype was used at MBB as a test stand for components of the Bo 105 and parts from it were used in the restoration of the one seen here

No, it's not an Alouette but a rival German design, likewise powered by an Artouste turboshaft. Development was too slow, and the Alouette II won a fat German army order. This is the third and final SM-67, preserved in the Helicopter Museum, Bückeburg town.