Got this gun when my grandfather died. Curious to know about the gun’s age, value, year of manufacture. It bears the following markings: TOP OF BARREL: *Harrington & Richardson Arms Company Worcester Mass USA No patent information shown. Does this mean it is the original version? SIDE OF BARREL: * Auto Ejecting .32 S&W CTGE SERIAL #: 281007 Description: 6 inch, 6-shot, top break, blued steel, black grip. Looks original. Hammer has finger pull. Most of the bluing is gone. Gun shows signs of use/age. Gun appears to be operational. Action works smoothly and appears tight. Any information would be greatly appreciated. Thanks!