I mean the new one that Jason Momoa got which is his family crest, not an in-show tattoo like his neck one.
Just for reference, he got this tattoo sometime between the filming break of season 3 and season 4 and they decided to write the tattoo into the show. For those of you who don't know.
They covered it up for "Adrift", "Lifeline" and part of "Reunion" until it was added in the show.
At first, they covered it up with one of Ronon's long sleeved shirts: http://www.stargatecaps.com/sga/s4/4...ft%5F0040.html
Then, later in the episode, they covered it up with a conveniently placed bandage:
And later with a different long sleeved shirt:
With his long coat:
This is the addition of the real tattoo into the show:
I only point this out for those of you know didn't notice his convenient concurrent wearing of long sleeved shirts since Ronon prefers the sleevless shirts.
Another mistake is that in "This Mortal Coil", the clone of Ronon in the copy of Atlantis had the arm tattoo despite the fact that Weir was captured before Ronon had the tattoo, this is evident in the first few scenes of the episode mainly during Ronon and Sheppard's sparring match. Then later, it was possibly noticed by the production crew and [clone] Ronon wore one of his long sleeve shirts to cover it up, assuming that they couldn't reshoot all of those scenes with the long sleeve shirt, they just left that part alone.