YOU ARE BIDDING ON AN ANTIQUE  J. LANCASTER & SON WOOD NEGATIVE PLATE HOLDER. IT IS MADE OF WOOD WITH BRASS CLASPS. IT HAS THE J. LANCASTER & SON METAL SHIELD ON IT AND SEEMS TO BE IN EXCELLENT CONDITION NO SPLITS OR DAMAGE TO THE WOOD. THE SIDES SLIDE OUT AND IN WELL. ITS OVERALL SIDE IS ABOUT 9 1/2" BY 6 1/4", I BELIEVE IT FITS A 5" BY 7" GLASS NEGATIVE. PLEASE LOOK AT ALL PHOTOS AND ASK ANY QUESTIONS YOU MAY HAVE. REMEMBER THAT I SELL MOSTLY ANTIQUE AND VINTAGE ITEMS AND THAT THEY ARE MOSTLY LIKELY NOT BE PERFECT DO TO THE NATURE OF THEIR AGE. IF YOU HAVE A PROBLEM PLEASE CONTACT ME BEFORE LEAVING FEEDBACK.