I think i just found it, i don't think i would want to try the first, and the cracked case might be going to far.
Joe's image of the blades is good, but i do have a weird feeling that might have an ever so small issue cutting grass, call it a hunch!
Its amazing what you find though, once had one where the owner was willing to freely admit his stupidity as he donated the mower. he had got tired of the catch falling off, so he used tin plate to make a bridge, which he extensively riveted to both the base and catcher... essentially, he riveted the base to the catcher, and only realised the madness to his method once it came time to empty the catcher.
The catcher was still full when he donated it.
