"Large Hardwood Plaque, Late 19th Century"
Very nice and large bois durci plaque. Late 19th century. Most likely the plate was on a wooden box or part of a book binding. Dimensions: 24.7 cm x 15 cm The manufacture of Bois Durci was patented in Paris in 1856 by François Lepage and was made by mixing very fine sawdust, usually ebony or rosewood, with albumen -the sticky substance found in blood or eggs- and combining the two in a steel mold under heat and pressure. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato