Wow! I thought it probably carried JFK but not Lincoln. I didn' realize it was that old. Thanks for the answer.
It isn't. The caisson only dates back to 1918. I think it is the same one used for JFK, Ike and LBJ (at least). The older connection is the stand on which the coffin sits in the Capital. That dates back to Lincoln. Also, the first Presidential funeral using a riderless horse with backwards boots was Lincoln.