75mm Doorstop

Here is my 75mm doorstop. When it was given to me I was told it was a US WWI item That about all I know about it. It has a 13mm wide copper driving band. If it ever had any markings they are long gone.

Diameter 74mm
Drive band 76mm
Length 260mm

Any ideas what it is and what it might look like if not in “relic” condition



Paul–It appears to be a 75mm French Howitzer, and most likely is, as you were told, from WW-I. Many thousands of these were packed home as souvenirs of the war.