It is used? I didn't think that steiner sold ZT's anymore. I know that they sold mid mount and front mount (walker style) ZT's years ago but I didn't think that they still did. It seems like I read where the Front mount Steiner was made by Bobcat. Maybe some of the guys with knowledge of them will speak up soon. Good luck
Yeah they use to make them I had a couple of them back in 01-02 they look kind of like a Dixie Chopper and they were actually a pretty good mower, the only trouble I had with mine was the silenoid that operated the up and down switch on the deck always went out (about 4 a summer) and the deck would drop all the way to the ground scalping the grass, and the bearings on the striping kit went out often. But the cut was good, stripes were great and it held good on hills.