Issue Date:27th JULY'2011
Commemorating the unofficial mascot of the Railway Mail Service and an icon of Postal lore, this envelope carries an affixed Owney the Postal Dog (Forever®) stamp and a First Day of Issue postmark.The stamp design features an illustration of Owney against a gleaming background of some of his famous tags and medals. The First Day of Issue postmark includes the date and location of the stamp issue: July 27, 2011, Washington, DC 20066.(Source-USA Post)
Remark:Many thanks to Renate H Thompson, Managing & Membership Director CCCC for sending this nice FDC to me.