"Hand mower" or "push mower" turned up a whole bunch of them, so I guess they're still out and around. Thanks, Robin!

Here we go. THIS is pretty similar to what I remember seeing when I was a kid. There was also a sort of canvas bin thing you could hang on the back to catch the grass cuttings.

You can still buy them, but I haven't seen one of these things in actual use in decades!

Don Firth