Dear Lisa,

Thank you for the additional images and your patience. My sincere apologies for the delay with the apprisal.

The presented object appears to be two prints in offset or lithograph technique with the measurements of 13 x 9 inches each. These prints are made after two lithographs in colors which were singed and dedicated by Joan Miro. In this case, these are prints after originals by Miro as we can see at the structure of the printing inside the letters and numbers. These reprints were made in the second half of the 20th century.
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 30 to 60 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