No person or persons shall sell or offer for sale any mackerel without having stamped, upon the barrel or covering containing the barrel, in a plain and legible manner the quality of the fish as classified in §§ 21-15-7 — 21-15-11.
Stamping as to quality of mackerel
R.I. Gen. Laws § 21-15-12., under Chapter 21-15 Pickled Fish.
R.I. Gen. Laws § 21-15-12.