It is a white cardboard with bevelled edges placed between the frame and the photograph. The mat has a double function:
Photograph of Barbra Streisand taken in 1962.See all photos from Vintage Collection
Vintage Collection - Library of Congress - Al Ravenna
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.
Barbra Streisand, music, vintage collection, vintage, black and white, b & w