Pennsylvania - this is listed under Pittsburgh, PA for filing purposes - even though it isn't a postcard
this little military booklet is 2 1/8" by 3 1/2"
Titled the Soldiers Return / The Union Forever / Pittsburgh Subsistence Committee - showing a farmer next to his plow with a rifle in his hand and the other holding up the flag
by F R Brunot, Esq - Johnstons Printers 57 Wood St
Preface - The 123d regiment, Pennsylvania Volunteers, was recruited at Pittsburgh, in August, 1862, by Col J B Clark, for nine months service, and arrived at Antietam on the evening of the engagement. The next morning the regiment was formed in line of battle, but the anticipated attack was not made. The regiment was subsequently in the battles Fredericksburg and Chancellorsville, and was discharged on 13th of May, 1863, the expiration of its term of enlistment.
The men were handsomely welcomed on their arrival at Pittsburgh, and marched to the City Hall to an entertainment prepared for them by the Subsistence Committee, after which they dispersed to their homes. Pittsburgh, Dec 25, 1863
There are 20 more pages (I will take a copy so that you can see how it went).
Fantastic shape considering it is very old and has survived in someone's collection all these years