That's a nice antique. Just hang it on the wall for others to Ohh and Ahh at.
As with many other tools people often think that powering a tool will make them successful at using the tool.
If you can't properly use a file, you won't do better with a grinder.
If you can't use a paint brush, you won't be successful with an air brush.
If you can't master a jewelers saw, a powered hand saw won't do better.
If you can't forge weld by hand, a power hammer won't suddenly make you a damascus making wonder.
Kindyr, Mastering a jewelers saw requires several things.
A FIRM rest arm to saw on.
The blade fastened in the right direction. A jewelers saw cuts on the pull stroke, not the push (as a coping saw does).
A smooth ,steady, and full length stroke, keeping the hand straight and the saw at 90 degrees.
The blade needs to be matched to the stock. Two teeth per thickness.Use a chart, if needed.
Cheap Blades do not save Money!
As with engraving, turn the work, not the tool.
Stacy