Victorian Sterling Silver Scottish Cobalt Enamel Engraved Celtic Knot Brooch

Vintage Victorian era and style c1850 sterling silver Scottish Celtic Knot Brooch beautifully inlaid with cobalt blue enamel - unmarked - measures 2 1/4 x 1/4 -original hinge, pin and c-clasp all in excellent wearable condition - weighs grams. I will do my absolute best to describe each item as accurately as possible and to the best of my knowledge. That being said, please note that my items are vintage, often unique and unless otherwise noted not in mint or new condition, light wear consistent with age and use must be expected.