All of the 28-2 WSP revolvers I have seen and owned and seen have had " WASH STATE PATROL" engraved on the right side of the frame on the sideplate below the cylinder like the picture below. Have spoken to three retired WSP troopers who have confirmed their issue S&W 28-2's are all marked the same. Have spoken to a retired WSP armorer who has confired that every WSP 28-2 he had ever seen was also marked the same.

The confusion comes from the fact the all WSP issued revolvers prior were most likely WSP engraved marked on the backstrap. All of the model 1950 HD's (including the pictured one above) I have seen for some reason have had the WSP stamp removed when the trooper retired, leaving a polished or matt spot on the backstrap, next time I speak to the retired WSP armorer I will ask him about this.

Has anyone ever seen a S&W Chief special with a WSP stamp?, I know they were issured to the Washington state governors protection detail manned by the WSP, as well as ranking WSP officers.

Also see the Remington 870's from time to time that were WSP marked.

thanks again, olypenn222