Does a McClellan saddle tree have separate parts?

A McClellan saddle tree is made up of five wooden parts. The pommel, two side bars, and the cantle (which itself is comprised of two parts joined together with an iron strap). The entire affair is then covered with rawhide which is sewn together using rawhide lacing. This method of tree construction remained constant for the duration of the McClellan's history with the US Army 1859 - 1945.