5-250 USD or so
Slim to none.
25-100 depending on condition.
More information needed - is it solid frame with pull pin cylinder (Young America Double Action). or hinged frame auto ejecting (PREMIER)?
Harrington & Richardson Arms Co. made a medium, hinged frame, auto ejecting revolver called the "PREMIER model". It was chambered for 7 rounds of .22 rimfire or 5 rounds of .32 S&W. Manufacturing era was mid 1890's through circa 1942-43.
It is, most likely with that barrel rib stamping, a 1st Model 2nd Variation "Auto Ejecting" model - made before 1890 - earliest production of this variation was around 1886-87. In excellent collectible condition, these will bring close to $300 at auction.
A desirable item to an H&R or early semi-auto pistol collector - value will excede $500 at auction.
50-90 or so
Blue Book of Gun values.
Your model 165 leatherneck semi-auto will bring between 110-170 dollars for a rifle showing between 60%-90% of its original finish.
Not enough information provided for clear answer. Description of type of "pistol" - semi-auto or revolver, markings on firearm, type of action, etc. needed.
Utility handgun. Little value.