Italian horn: Related to the corno is the mano cornuta or "horned hand.
Detail of design for thimble engraved by Theodor de Bry, early 1590s. Husband holds bridle, wife holds quince. OBSEQVIO ALITVR AMOR [love is nourished by obedience]. The German verse below means "The wife has the quince, the husband the bridle-bit/ friendly love brings agreement with enjoyment". As for the goat leaping over the other on the bridge -- that's another whole story! (butt -- see what I did there? --see my Album Amicorum board)