This is from a small bunch of covers and stamps on paper from a family collection that I was just given today to sell. I am lucky to see so many neat things. I really don't know the value of this (or the stamps) but thought it was neat.
From Calcutta, India to Halifax, Canada.

Somewhat dirty and stained from the glue in the envelope coming through but still nice.

I like this monogram of the sender's initials, PML. The P is white, hollow, the M is slightly filled in, darker, and the L is shaded in completely, darkest.

nice stamps, present well.
Anyone know the value of these handsome fellows? Thanks!
Nice cancel, even though smudged: 'CALCUTTA G.P.O. / MR (?) / 11 ?? A.M. / 1947 / ornaments (nice) and I presume INDIA perhaps in the missing bottom part'

Airmail etiquette:

Any further information is, of course, welcome.