porter & york brand meats - prime beef boneless ribeye steak 12oz 4-pack porter & york brand meats porter & york’s 28 day aged, prime grade ribeye steak is rich, tender and full-flavored with generous marbling throughout. may also be referred to as beauty steak, and spencer steak. porter & york’s prime grade beef steaks and roasts are fresh, and never frozen, from cattle raised on family farms in nebraska. only the top 2% of all beef is graded as prime. with abundant and rich marbling content, these cuts are found only in the finest dining and grocery establishments.