Crinoid Crown/stem

This is a Periglyptocrinus astricus crinoid from Brechin, Ontario Canada.  It contains most of the crown and partial stem.  Its a good price if you have been waiting to add a crinoid crown to your collection.  

I weighs 1.74 pounds and measures about 5.75 in by 4 inch by as thick but uneven 1 inch.  Though cannot be seen on the front of the fossil, one back corner does look like it was glued on to provide stabilization.