Framed print bearing a signature reading 'Siqueiros'

This artwork is presented as a framed print behind glass within a simple wooden frame and an off-white mat board. The visual composition depicts a dynamic equestrian figure, featuring a prominent white horse with bold, expressive dark and earthy brushstrokes in the background, stylistically consistent with mid-20th-century modernist works. In the lower left quadrant of the image area, there is a visible signature and date reading 'Siqueiros 66'. The owner has provided unverified context identifying the piece as a print titled 'Zapata' created in 1966 by the artist David Alfaro Siqueiros, with inner dimensions reported as 10 x 7 1/2 inches and framed dimensions of 15 5/8 x 12 1/8 inches. Because of the base-rate skepticism required for blue-chip artist names and the reproduction nature often found in framed prints, this attribution remains entirely unauthenticated and unverified. The physical condition appears generally intact under glass, though the frame shows minor age-related wear and slight discoloration is visible on the mat board. The identification in the title rests strictly upon the observation of the signature legible at the lower left of the image area, without asserting any claim of authenticity or authorship.

Based on what I can see in the provided photographs, the artwork is presented as a framed print behind glass within a simple wooden frame and an off-white mat board, measuring approximately 15 5/8 x 12 1/8 inches framed. The lower left quadrant of the image area bears a signature and date reading 'Siqueiros 66'. Per user submission, the owner identifies this as a print titled 'Zapata' created in 1966 by the artist David Alfaro Siqueiros. I cannot verify from a photo whether the signature is an autograph by the artist's own hand, whether this is a limited-edition offset print, or if it is a later reproduction. The estimate provided here assumes the attribution to David Alfaro Siqueiros is correct for the sake of valuation, but this remains an unauthenticated working hypothesis. In general, mid-20th-century modernist prints attributed to major artists can see moderate to strong demand in the secondary market, provided their authenticity is established. If physical inspection reveals this piece to be an unsigned reproduction, decorative print, or posthumous copy rather than a hand-signed graphic work by the artist, the value would be significantly lower, typically falling in the $50-$150 range for decorative framing. To move beyond an assumption, would need physical inspection to confirm the printing technique, paper quality, and ink composition, alongside professional authentication, provenance documentation, and review by a recognized expert on the artist's graphic oeuvre.