This self-portrait of Frida Kahlo with a pet monkey was exhibited in 1938 in New York in her first exposition there.
The artist later gave this painting to her close friend, Mary Sklar. First she attached a mirror so that her friend could be with her, if she wished.
This has to be the most thoughtful material gift to a friend I have seen.
The most valuable non-material one being their physical presence and their attention when they are not present.
The most valuable gifts in the world.
Failing physical presence, what a wonderful gift of friendship is this double mirror!