Bidspirit auction | 1912 registered cover Damao to

1912 registered cover Damao to Bombay franked with 5 bisected Carlos Mouchon issues. 6 reis on 8 tangas, 3 reis on 2 tangas, 3 reis on 2 1/2 reis and 1 1/2 reis on 2 1/2 reis x 2. Registration label. Kalbadevi (Bombay) receiving CDS. One stamp with overprint error: 1 1/2 reis overprint on 2 1/2 reis missing on left side. CE 237, CE 236, CE 235, and CE 233 x 2. Unusual error.