counterstamp

[ noun koun-ter-stamp; verb koun-ter-stamp ]
/ noun ˈkaʊn tərˌstæmp; verb ˈkaʊn tərˈstæmp /

noun

a stamp added to a stamped paper or document as a qualifying mark.
Numismatics. countermark(def 1).

verb (used with object)

to stamp (a paper or document) already stamped.
Numismatics. countermark(def 2).

Origin of counterstamp

counter- + stamp

Words nearby counterstamp

countersign, countersignature, countersink, counterspy, counterstain, counterstamp, counterstatement, counterstroke, countersubject, countersue, countersuit