18th century reticulated circular salver, Joseph and Nathaniel Richardson, Philadelphia, PA, circa 1785-91, having a delicately beaded edge and openwork border with three beaded openwork swept French feet. The center engraved with bow knot, crossed fonds motif, and bright-cut oval cartouche with sprigged script monogram ''MP'' for Mary Pemberton. Three maker's marks ''INR'' with pellet between ''I'' and ''N'' in rectangular cartouche. 1-1/4''h, 7-1/2''dia. Total approximate weight 9.1 troy oz. Provenance: Ron Klinger, Philadelphia, PA, 1994. Refer to: Sotheby's Collection of Mr. & Mrs. Walter Jeffords, October 28, 2004, Lot 626. Literature: ''Joseph Richardson and Family, Philadelphia Silversmiths,'' by Martha G. Fales, 1974, Philadelphia: Historical Society of Pennsylvania, page 176, figure 151. Exhibited: ''Philadelphia Silver, 1682-1800,'' Philadelphia Museum of Art, April 14-May 27, 1956, page 174, figure 149, number 453. Note: This salver was part of Mary Pemberton's celebrated tea service, a service epitomizing the heights of the fashionable, well-to-do families in post-Revolutionary Philadelphia.