The triple STEIGER never made it past the proto. STEIGER had an issue with it pulling evenly and it was eventually cut up.
The twin engine (ST650) was more successful, but the cost to build it along with better engine technology retired this tractor too!!
STEIGER holds patents on both tractors yet.
The barn built STEIGER now is on display at Bonazaville in Fargo.
THANKS for sharing, the photos are awesome!!!