I actually bought this to do some R&D a few years back. I was thinking about making different shaped blades or adding more blades but nothing ever came of it after I stripped it down. It's actually new (never been on grass) but it has got a few marks I've shown in the photos. (The white gear/cog is used). Collection is available if you're local, if not I'll aim to post it via my evri within 2 days.