This acoustic guitar has been signed "To Greg from Elvis Presley" on the body by Elvis Presley in black Flair felt tip pen. The signature was obtained by collector Greg Martello at the New York Hilton Hotel, believed to be in June 1972. This is a seven string acoustic guitar. The maker is not known, but the label inside the guitar body appears to be printed in Russian. I am not aware of any other existing guitars signed by Elvis.