Sterling Silver Marcasite Pendant and Rope Chain

Selling both items together. I’m unfamiliar with the makers mark. Pendant has a Capital A 925. Chain has a A inside a circle. Chain marked 925 Italy. Chain is made a darker color silver to compliment the pendant. Pretty pendant with square cut Marcasite. Pendant approx 1.5” x 1.5” Chain approx 18 1/8”