The tourist's guide. No.1. 50 miles round Stirling.  /
Hume, Robert W.
Leith : Published by R.W. Hume,
[1840]
One side has a map of Stirlingshire, with a blank space for an address.  The envelope flaps show various Scottish scenes; when opened up, there is a map of the Stirling area.
'Price, one penny.'
One of a number of designs for envelopes after the introduction of penny postage.
Postal stationery