cover 1876 (28 Mar.) envelope (opened-out) to Lisbon (14.5 arrival), showing a superb strike of Crowned circle "PAGO/EM/MACAO", "B/MACAO" c.d.s., framed "VIA DE/GIBRALTAR" in red and handstruck "60"; the envelope with flap missing and with small fault at top caused through opening. An outstanding cover of great rarity. Photo in colour