Man I love that pic. Truly shows the 800s in the prime, doing what they were supposed to do.
As far as I am aware, Tailte carried the extra hand railings to the grave.
It seems that that in the late steam days,CIE focused there attention on Meabh when it came to the 800s,cared for her better. They put single chimneys and red nameplates on macha and Tailte, possibly to make Meabh look more unique.
Just my opinion