A few months ago, I passed some motorway maintenance people using a
small baler.

It was self-powered but somebody was walking behind it, steering it. It
produced cylindrical hay bales about 1 metre long and 1/2 metre
diameter.

As I was doing 70 mph on the M40, I wasn't able to stop and ask about
it.

I'd be very interested in obtaining a similar baler.

Can anybody point me to a relevant web site - I have no interest in
anything bigger or anything that needs towing.

Thanks,

Larry