This is the 745 Bell 47 Army Helicopter I got off ebay for a great price. It was missing the canopy and pilot but a friend in Wisconsin sent me a spare unit he had for parts. This was only issued in the #303 Commando Set and only from 1978 to 1980 so is relatively hard to find. I am most pleased to finally have one as I now have all the helicopters Dinky ever produced. The Police version can be seen here.