They soldered over most of the printing on the bell, but I can see ‘Pat’ one the left and ‘922’ on the right. Thinking it 1922.
Yes that's what we would expect to find stamped on that inverted cup. US patent 1415180 applied for 22 Sep 1920 and granted 9 May 1922. The inventor was Frank Kohlhase and he was President of National Stamping & Electric who made and sold Nulite lamps. So as the guys said a Nulite match lighting generator and actually a pretty good find in unused condition. ::Neil::