Portuguese Mint Bible Plaques

Portuguese Bible plaques, set of four. Each one is a bronze rectangle 75 mm x 88 mm and 7 mm thick at the edges. The plain edges are numbered indicating that this is set number 41 out of 1000 sets. One side of each plaque has a bible scene and an allegory representing one of the virtues on the other. The four plaques are in a presentation case with a total weight on a bathroom scale of three pounds. The set is dated 1982. Anyone have any additional information on this set. I could not find anything about this set on the Lisbon mint site. Thanks