By the style, it appears to be from the Art Deco era (20s-40s). Bsed on the design and the style of the monograms, we think it is from the earlier side of that era - 1920s. Nice pierced symmetrical form.
One is monogrammed with an Old English letter 'R' and the other looks like a 'K'.
They each measures 1 5/8" x 1 3/8". Hallmark is for the Webster Co.
Price is for both.