The item shown is called a “Signature Mat”. The signature mat framing option displays an “event photo ” for graduations, weddings, family gatherings, etc. and the glass in placed under the mat to allow someone to write a personal message pertaining to the specific event.
This framing option is constructed with a wider mat area around the photo to accommodate the written messages.
The price charged for the item includes the extra work involved in reassembly to put the glass on top of the mat and provide proper hanging hardware.