WCE they are a great mower, thats a good pick up.
I have one that I purchased new in about 1973, has not been used for probably 10 years but I can almost guarantee that clean out the carby new fuel and she will fire up.
It is amazing the grass this thing has cut and I mean grass not lawn, I believe I have replaced the belt once, have fitted an electronic ignition module to it (no idea why) and replaced the air snorkel with some Victa part with the air filter at the top, whereas the original used to be down near the carby with a solid snorkel that ran up the handle, again no idea why I did that, too many years ago,
She is inline for a bit of refurbishment.

Beech