Odontoglossum citrosmum.
Rosenberg, C. T. (drawn and zinco by).
London. C. F. Cheffins. No date. Ca. 1852. Hand-colored zincograph (lithograph from a metal, rather than stone, plate), sheet size 10 x 6 1/2 inches. Tight margin at right edge, otherwise very good condition. Exquisitely colored and lithographed image of the orchid plant.....