Patent ID: 8534535

Claim:
An envelope formed from a blank, comprising: a front panel of the blank having a first display rack hole, a first margin, a second margin opposite the first margin, a third margin joining the first and second margins, and a fourth margin opposite the third margin which joins the first and second margins; a first side flap of the blank joined to the first margin of the front panel; a second side flap of the blank joined to the second margin of the front panel; a top flap of the blank joined to the third margin of the front panel and having a free end; a bottom flap of the blank joined to the fourth margin of the front panel and having a free end; a second display rack hole in the top flap and disposed to be in registry with the first display rack hole when the top flap is folded behind the front panel; sides of the top flap tapering toward a center line of the envelope from a respective one of the third and fourth margins to the free end of said top flap; a window formed across the front panel and extending into the first flap and the second flap, a transparent sheet affixed across the window, such that when the first flap and the second flap are folded behind the front panel, see-through windows will result by which an observer can see all of the way through the envelope within the see-through windows; the top flap folded behind the front panel, the tapering of the top flap being such that it does not occlude the see-through windows.