From the reign of the King of Prussia, the meticulously scripted CCV monogram is set in the Victorian style.  As with most 3 letter intertwined monograms the letters can be reversed (CVC).  The monogram is sourced from the book by the heraldic...

Martin Gerlach Industrial Monograms (1880) Vienna, Austria. Monogram: ZH Attached detailed bale; Square shape; Detailed border; Raised monogram; Heavy oxidization 2.52 x 1.57 inches     24.50 grams