Counter-mark
Defined in 2 dictionaries — Black's (1910), Black's (1891)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A sign put upon goods already marked ; also the several marks put upon goods belonging to several persons, to show that they must not be opened, but in the presence of ali the owners or their agents.
Defined under Counter in Black's Law Dictionary.
A Dictionary of Law
Henry Campbell Black · 1891
A sign put upon goods already marked; also the several marks put upon goods belonging to several persons, to show that they must not be opened, but in the presence of all the owners or their agents.