The Seremet W.S.8 was a Danish invention similar to this one. (You can Google it but there's not much information and no pictures.)
Anyway,I have a picture in my Jane's Pocket Book of Helicopters(1978). It is a single rotor with a tail rotor machine, with no pitch change on the M/R which is 14'9" in diameter. It has similar tripod gear and a 35 hp Kiekhaefer engine behind the pilot with the cylinder pointing to the pilot's left, just above his waist. Max. T-O weight is 330 lbs.