Dear Annie,

Thank you for your request. The presented object is probably a lithograph print with the measurements of 18 x 14.5 inches. It is a reproduction of a drawing attributed to the school of Raffaello Sanzio da Urbino (1483-1520) which is exhibited in the collection of the Uffizi Gallery in Florence. The facsimile was edited by Fratelli Alinari in Italy in the last third of the 20th century.
An estimation would be between 20 to 40 USD.
This estimation is based on actual recent past recorded auction sales of comparables. Retail "asking prices" can be higher and vary.

With best regards,
Georg