I am trying to duplicate this logo for a customer. He does not know what font the original designer used. I can find a few that are close but not exactly the same. Can anyone please help?

THANKS!

Source Serif  Suggested by donshottype 

Source Serif Pro Black



Source Serif Pro is a set of OpenType fonts to complement the Source Sans Pro family. In addition to functional OpenType fonts, this open source repository provides all of the source files that were used to build them using the Adobe Font Development Kit for OpenType (AFDKO).

Source files available from
https://github.com/adobe-fonts/source-serif-pro