There is no envelope with this card, and no date on it. But Barbara labelled it as 1936, and grouped it with Alma's 1936-1937 India documents, so I imagine they were all grouped together physically. I have assigned it Christmas Day as a date, but I trust Professor Bower sent it out well before the 25th.
Professor Frederick Orpen Bower was an old friend. He's in the Non-family page for India folks etcetera. He's the etcetera.