Bidspirit auction | PS 1953 uprated PSC Goa

PS 1953 uprated PSC Goa to Belgaum. 7 reis OM 41B. Uprated with 2 reis Mf# 417. Hexagonal registered airmail AmbulanMf# Postal postmark and Belgaum arrival CDS. Correct use of the low value stamp. Unusual usage of the hexagonal postmark for unregistered surfaMf# mail. Contents in Native script. Interesting.