A New style of letter Envelope.
--The ‘"envelope-letter"’ is a recent invention, and seems to be worth adopting in this Confederacy as a most useful contrivance.
We find it thus described:
It presents us three separate things in one, viz: a sheet of letter or note paper, and envelope and a postage stamp, all so simply put together that one may use them with more ease than he would the old envelope.
The advantages are, first, that the whole costs less than the materials would separately, thus effecting an important economy for those who write many letters; second, the stamp cannot be stolen or rubbed off, which is a matter of some consequence when it is remembered that nearly a million of letters are returned to the U. S. Dead Letter Office annually that have suffered in this way; third, the post-mark is always on the letter itself, which can therefore be used in courts of justice, as a legal proof or document, as to the dates, contents, &c.; and, fourth, as the sheet, envelope and stamp are one, time and trouble are both saved in conducting a heavy correspondence.