If the Ruger web site will work for you, they have sn data available.
50-350 usd
50-250 or so
50-250 or so
Yes
About $500.
Depending on condition, $250-$550. These were made 1953-1973. The early revolver with a FLAT loading gate is worth considerably more. The Ruger website, under customer service, lists date of manufacyure.
Three types of screw machines are used by manufacturers: swiss, single-spindle, and multiple-spindle machines.
A three inch deck screw will typically hold anything.
Single (Sgl.) screw: only one propeller what in Spanish is HELICE: on the aft. Double: 2 = dos helices; two propellers (two fans) one on each side (Stern) Triple: probably on the back (Stern)
you sure can most have a stopper screw on the throttle cover also there is a speed control screw on most keihin three wheeler carbs
It was 882.5 ft. long. My boy and I are building a plastic Titanic model and I see that it has three propellers (known as "screws" in the boat world). So it would be a triple screw if I am correct.
4 inches or longer