Dear Tim,

Thank you for your patience.

The presented object appears to be a lithograph in colors on paper with unknown measurements. The print depicts an abstract composition and had no title. It is hand-signed and numbered by the known artist Alexander CALDER (1898-1976). Compared to auctioned prints with the same motif the measurements should be around 30 x 20 1/4 inches.
Works by this artist were recently offered and sold on the international auction market.
This piece is in good condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 800 to 1600 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards,
Georg