Very cool Halloween party invitation with its original mailing envelope.  The mailing envelope has a postage stamp date of October 10th, 1911.  You can see in the pics the tip of the broom is torn off.  I believe it is the loose piece that you see in the pics.  Also the very tip of the witches hat is missing but I do not have that piece.  There are a couple of creases in this and the piece is fairly fragile so I've tried not to handle it too much.  It will be mailed on the outside top of the envelope.  I don't want to put it inside the envelope for fear of damaging it more but it will be well protected and wrapped for shipping.  With AI's help on reading the invitation below is what AI told me it says: