It is a white cardboard with bevelled edges placed between the frame and the photograph. The mat has a double function:
James Brown (1933-2006) American singer of soul, gospel and rhythm and blues, in concert at Olympia September 21, 1967See all photos from Bridgeman Images
Bridgeman Images - AGIP
Your photograph is printed on a high quality satin photo paper in 250g thickness. Thanks to our high-performance printing systems and a sharpness of up to 1440 dpi, we guarantee you a product worthy of the greatest art galleries. If, despite our expertise and precautions, you notice something wrong with your product, we will send you a new photograph at our expense.
James Brown, concert, jazz