Thank you for submitting your item for appraisal. This appears to be a JG Keulemans lithograph of a Temmincks Roller or Purple-winged Roller. John Gerrard Keulemans or Johannes Gerardus KEULEMANS (1842-1912) was a well known bird and wildlife painter of the late 19th and early 20th centuries. The dutch born artist is especially known for his contributions to the book "Birds of the British Islands (1885-1897). Prints after his drawings were published from circa 1870 up to the first quarter of the 20th century. The lithographic print in your possession is in apparently good condition an has not faded. The estimate is based on similar prints actually sold at auction.