This is the engraving of the logo and serial number on a solid gold music flute for Nagahara Flutes.
www.NagaharaFlutes.com
Towards the end of the video when I was taking the pattern off the screen turns blue. Wait a little while and it will come back. There is a little more to the video after that.
Youtube link:
https://www.youtube.com/watch?v=W8IudSaNZdw