Style and subject matter does not point to Arturo Tosi. On your signature photo it looks as a print, since no paint strokes are apparent.
You should show the back also. If the support is canvas you should also look at how it is attached to the stretcher: nails or staples (telling about the age). You should also give the size of the canvas.
Thank you for responding...the painting is 47 x 24 and it is definitely a painting - thick stroke marks. As for the canvas, I took a picture, but am not sure how to post it here. It appears to be an old canvas, held in place with bent nails.