THIS IS A VERY RARE SET OF ANTIQUE FORMAL WEAR CUFFLINKS MADE BY GERMAN JEWELER WALTER MUHLKE IN THE LATE 1800's OR EARLY 1900's. THE SET COMES IN IT's ORIGINAL BOX. THE BOX IS STAMPED BY THE JEWELER AND CITES COBLENZ AS IT'S PLACE OF ORIGIN. COBLENZ WAS EVENTUALLY CHANGED TO KOBLENZ GERMANY. THIS HELPS ESTABLISH THE DATE THE SET WAS MADE. WALTER MUHLKE WAS A WORLD REKNOWN JEWELER THAT USED HIGH END QUALITY.MATERIAL TO MAKE HIS PRODUCTS.  THIS SET CONSISTS OF A PAIR OF DOUBLE-SIDED CUFFLINKS WITH THREE MATCHING SHIRT STUDS. THE CUFFLINKS ARE STAMPED "800" INDICATING THEY ARE 800 CONTINENTAL SILVER. THE CIRCULAR PANELS ARE GENUINE WHITE MOTHER OF PEARL WITH LAB GROWN RED RUBY CENTERSTONES.  THIS IS A FINE QUALITY SET YOU WILL BE PROUD TO OWN. THE SET IS IN EXCELLENT ANTIQUE CONDITION. IF YOU HAVE ANY QUESTIONS PLEASE FEEL FREE TO ASK. THANKS FOR LOOKING!