Michel: MO 589 to 592

Stanley Gibbons: MO 662 to 665

Afinsa-Mundifil: MO 563 to 566

Issued on: 1988-04-14

Perforation: 12½ x 11¾

Printing: Offset lithography

Paper: Esmalte

Face value of each stamp: 3 Macau Patacas