Is Autumn Here?

Postcard of a chestnut sent by Heleen (the Netherlands).

Stamp issued by India Post on 15 August 2017, featuring one of the winners of the Beautiful India Nationwide Photography Competition. I do not know when the picture was taken, but it seems Autumn to me.

This stamp belong to the series Animals in their habitats, issued by Swiss Post in March 2022. I like the description on the web:

The first depicts the brown-lipped snail, which carries its home around on its back and can be seen crawling at a leisurely pace over mossy terrain. It adorns the B Mail face value and is also a tongue-in-cheek reference to snail mail.

It was a present from Heleen and arrived inside this envelope.