I recently came across a listing for this record album signed by Groucho. The album itself is from 1972 and is a recording of his performance at Carnegie Hall. According to some accounts, Groucho was strongly urged by his notorious "companion" Erin Fleming to take this engagement on.  I have heard this transcription and he is very frail sounding and seems somewhat confused at times (He was 82 at the time and had suffered a prior stroke).

According to the seller, this album was most probably signed by Groucho to his visiting nurse named Barbara Winger Bruner in the final year of his life (1977).  I know that Steve Stoliar (who worked for Groucho in his later years as a kind of archivist) has said that Groucho was insistent upon signing fan mail himself but that Steve would write out the dedications and Groucho would then sign underneath.

This album kind of looks to have been signed by two different hands.  The "To Barbara" at the beginning looks very shaky and the rest, including the signature, looks somewhat smoother.

Any thoughts on this?