Have been reading some of the older posts dating back to 2008, in attempting to confirm the ID and, if possible, further information regarding the date and origin.
The brass case appears quite clean with little patina. Consequently, I wonder if this is not so old.
I believe that this is a .40/70 Sharps Necked…from the cal., case length and bullet shape.
Unfortunately no headstamp.
Dimensions are as follows:
Case length: 2.27"
Would appreciate help regarding identification and origin.