What this mower is is a Model 65 which was the replacement for the Supercut. The 65 is basically a semi Greens mower and not really a domestic unit. I guess it all depends on how serious you are going to be about your lawn and remember it's not the mower itself that turns grass into lawn. It's all the base work and prep involved, the mower just gives it the finish that you are looking for.
A model 65 can be worth anything from $50 right through to around $1000. It all depends on the condition of the machine both mechanically and cosmetically. Has it had a hard life or a cushy one. How wide it is ? and whether it is petrol or electric powered. Most of them are petrol powered machines.
A couple of good photos or a link to the listing would be able to give me a far better ability to give you an opinion.
Cheers,
BB.
