sb. [COUNTER- 6: after F. contre-émail.] The enamel of the reverse or lower side of an enamelled plate.
Hence Counter-enamel v. [cf. F. contre-émailler], to enamel on the back as well as the front.
1875. Ure, Dict. Arts, II. 272. When the plate is not to be counter-enamelled, it should be charged with less enamel, as, when exposed to heat, the enamel draws up the gold to itself, and makes the piece convex.
