2 framed ornithological lithographs by J. Gould & H.C. Richter, vintage bird posters

Set of 2 framed ornithological lithographs by j. Gould & h.c. Richter. Vintage illustrations / posters depicting birds, reproduction of the works of john gould, ornithologist of the nineteenth century. Simple frame in green wood with glass. Dimensions: 42.7x32.3 cm. In good condition, good quality paper printing, some small marks on the frames (see photos). Neat and well protected shipment.