Good day, and welcome to my contribution to Sunday Stamps. Today's theme is inventions and discoveries.
First I must say I don't have this stamp in hand - I have taken its image off the web.
A USA stamp from some time ago, when postage was 20 cents for a first class letter. Nikola Tesla invented much more than the induction motor; alternating current for one. There is now a line of electric cars named after him.
Visit SeeitonaPostcard for more participants.
I have a page on Facebook: keep up with my infrequent quilt and stamp posts at https://www.facebook.com/pages/Viridian61/347674418583948?ref=hl
Viridian