Genuine old envelope, front and back, with all the characteristic scuffs and wrinkles you would expect to see on a 19th Century item of aged paper stationery. The One Penny stamp is typical of the time, and the postmark is neutral enough to remain as it is, or a custom name can be fitted into it. Add an authentic look to your vintage projects.
Please have a look at my Collections on my profile page for all sorts of other artistic items. Thank you for your interest.