1954/55
yes
it is 56 Remington rifle model
That appears to be a Savage build, close to their model 34 or 56/65. You can find mags for the 34 easier than the other 2. At about $15 each, it's a small investment buying one of each for each model and see which one fits best.
100-1000 USD
I would try numrich arms for a magazine for your Stevens model 34.
Marlin
583 was part of a model number used by Sears on J C Higgins and Ted Williams branded guns sold by them. IF your gun is a .22 rifle, you may have a High Standard Model 34 Carbine. SOME parts for the Model 34 are availalble from Numrich gun parts corp. That rifle was made from 1962-1966. High Standard is no longer in business, so either used parts or new old stock parts are all that are available.
The value of a Stevens Model 34 22 LR caliber rifle is between $100 and $300. The overall condition of the rifle plays a large part in the final price.
And we need more information from you. What part is a translator?
My friend has a Sears and Robuck .22 bolt action single shot. We don't know the model or year it was made. Could it be a model 34?
Look at the date code on the barrel. Details on the Remington Society of America, manufactured date link.
Your Remington model 34 rimfire bolt action rifle will bring between 150-300 dollars based on the rifle having between 60%-95% original condition.These rifles were made from 1932-1936 in a quantity of 162,941 made during this time span.