The tourist's guide. No.3. 50 miles round Edinburgh and Leith.  /
Hume, Robert W.
Leith : Published by R.W. Hume, stationer,
[1840]
One side depicts Edinburgh, with a blank space for an address.  The envelope flaps show various Scottish scenes; when opened up, there is a map of the Edinburgh area.
'Price one penny.'
One of a number of designs for envelopes after the introduction of penny postage.
Postal stationery