The Moki 180/210 now known as Mark and and sold by Hobby people are all the same engine and are made in Hungary

There are two different looking Moki/Mark gas engines of this company

The new ones have a beehive head design. The old ones had a conventional looking head

The RCS brand of gas engines sold in the USA for 7 or 8 years are also known as Moki's in Europe. I think they are made in Czechoslovakia?