Silver Junior mod. 250 knitting machine is a standard-gauge machine with only manual capabilities. I am not sure how many needles it has but judging by the bed length probably 200. This machine has only manual needle manipulation capabilities.

Despite its vintage look, the row counter is of a more modern design.

If you cannot find any information on this machine, try to look for similar models: Empisal Knitmaster mod. 100 and Empisal Knitmaster mod. 250. These machines have the same yarn-cup setup but mod. 100 has a slightly more elaborated carriage and both machines have a needle selector. I am not sure if Silver Junior mod. 250 has a needle selector.