It may look retro-styled now, but the Anzani Lawnrider was seriously cutting edge (don’t hit me, I stole it) in the 1960s. Manufactured by the British Anzani Engineering Company, it is the descendent of an earlier and far less stylish model from the 1950s known as the Anzani Easimow (clever, guys). Anzani got out of the mower market in the early 1970s, but I understand you can sometimes pick up their mowers on the (relatively) cheap on eBay.
Vintage Garden Machinery [WeMakeMoneyNotArt]