Vintage Jim Tillett Silkscreen Signed Matted Unframed

For your consideration, an original silkscreen by Jim Tillett. Featuring an ammonite shell. Silkscreened by the artist in black on silk in original matte and signed. Unnopened with artist details on verso. Some yellow spots on canvas (probably from time). Please see closeup images for details. Art measures 7" t x 6" w. Matte measures 10 3/4" t x 9 1/4" w. In very nice vintage condition. Signed Tillett Thanks for looking CR1