I recently saw that a member of this forum had got an RTS from Elliott Gould's Ohigan Productions address. After a bit of digging I discovered that their office had moved and sent a letter and photo to the new address. I received it back signed in my SASE in just 3 weeks.
Elliott Gould
C/o Ohigan Productions Inc.
16255 Ventura Blvd. #625
Encino, CA 91436
USA