Who’s Hobby House, located in downtown Rapid City, is well known for its iconic neon sign! The sign was created in 1951, and is now on the National Registry of Historic Signs. Who’s Hobby House was founded in 1950 by William H. Osterburg. His initials explain the origin of the hobby shop’s name. In 1957, Mr. Clancy Kingsbury’s grandparents acquired the shop, beginning the Kingsbury legacy. In 1978, Clancy’s dad bought it. In 1991, Clancy gained control. Clancy Kingsbury is now the third generation owner of this family owned and operated business. #88-1401, Lg. Who’s Hobby House Billboard Size 4.36″ tall x 3.5