Inscribed at lower left, in pen and brown ink, "L."; at lower right, in pen and brown ink, "Lambertus Lombardus 1550"; collector's stamp of Lionel Lucas (Lugt 1733) at center near bottom margin; on verso, in the same hand as on the inscription on the recto, at upper center in pen and brown, "Lambertus Lombardus, otherwise Suttermans / or Suavius born in Liege. He was Painter, Architect, Graver & Sculptor. He flourished 1550."
Watermark: Possible bull's head with cross, drawing is lined with thick adhesive and watermark image is almost indecipherable.