This is what happens when a philatelic unit strays away from common sense.  It was intended to be a set of four maximum cards (official reference BPL 260-263) — captioned, in Portuguese, as “Gastronomia e Docarias III – Petiscos Populares Tradicionals”, or, loosely, Macanese traditional snacks.  Then things went wrong.  Issued in 2020, they are *almost* maximum, with stamp and postmark on the fronts, but the designs don’t match, and nothing is really readable because everything is so crowded and busy.  Not Macau Post’s best effort, but in other respects these cards are in excellent condition.  Grade: 1