Karel Appel did this sculpture as part of a series he did in San Francisco at Editions Press, this in a total edition of 65. The structure was constructed by Editions Press and each work was then hand painted by Appel and will vary greatly from sculpture to sculpture.
There was an edition of 50, numbered 1/50 to 50/50; 7 Artist's Proofs, reserved for the artist, 7 H.C. proofs (of which this is one), reserved for the collaborators; and one Museum Proof for Appel's museum collection.
The certificate of authenticity reads: "The Following Colors Were Used in Painting These Original Sculptures: 1. Hyplar Cadmium Red, Medium; 2. Hyplar Manganese Blue; 3. Hyplar Titanium White; 4. Hyplar Cadmium Yellow, Deep; 5. Hyplar Permanent Green; 6. Hyplar Purple. 7. Hyplar Cadmium Red, Light; and 8. Hyplar Mars Black. The Artist Has Also Mixed A Number Of The Above Colors to Achieve Variant Colors."
The work is attached to the circular base, which is a Lazy Susan, allowing the sculpture can be rotated 360°. The certificate is on the bottom of the base.