Isolated stamps may take a bit more to fire up the imagination again, but there's nothing like old
covers for a combination of the technical and daydreaming.
I just picked up this cover


from Las Bela State, then in British India, now in Pakistan, to Karachi at some time around 1900. The technical side of the brain is itching to sit down and plate the stamps, since they have sheet margins on at least two sides - if I can ever track down my notes on Las Bela. The imaginative side contemplates the journey this cover must have taken, probably by camel for at least part of the way, from the wilds of Baluchistan down to the big city. It was probably only sent by a merchant ordering supplies, but it
is a tangible connection with a rather exotic time and place.