hey guys i picked up an old single shot 12 gauge and was wondering if anyone would be able to help me identify it. it's a harrington and richardson single shot with "harrington & richardson arms co. worcester, mass u.s.a. pat. feb 27,1900" stamped on the side. the serial number is 1739xx. no a before it as my other similar one has. this one is much heavier and has a bronzish colored receiver. any help would be appreciated