A moratorium is in effect on adding information from Fire and Blood until December 20th.
Talk: House Yelshire
Reference  indicates the blazon:
“Barry green and gold, a black battering ram with a gold head on a black chief”
The image displays a white chief, however
As such, the image is wrong.
Do note, that it is also wrong in the cited page.
Denalor 12:51, 29 August 2014 (UTC)