Macau 1958 Postal Tax stamp sheet featuring Our Lady of Mercies in a full pane of 50 stamps, each with a denomination of 2 avo. Issued on January 1, 1958, this design by José Neves Castela shows a robed figure representing charity with angelic symbolism, printed in lilac on grey-lilac paper using lithography. The issue is ungummed, perforated 11¾, and part of the mandatory postal tax program in the Portuguese territory of Macau, with proceeds designated for local welfare institutions. Cataloged under Scott MO RA15, Michel MO Z16, Yvert MO 387, Stanley Gibbons MO C469, and Barefoot MO A23. Condition is mint never hinged (MNH) and the sheet is intact and well centered. Estimate "$60 – 75"