Contact S&W. The number of 235 is kind of odd. How many mounted patrolmen were there when the commemorative was done?
It could be that a contract was made with an outside vendor to make the commemorative.
If a group of mounted patrolmen commissioned a special run, then the wear could be that one of the group used it as a daily carry.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
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Former President of the ECPT (Eifel Combat Pistol Team)