Mt. Washington's glass was not always marked and their Burmese appears to have been done only with a paper label. Regretfully today these paper labels are almost always long gone. Identifying Mt. Washington’s Burmese correctly seems to be knowing it's shapes and decorative patterns and styles used by the company. Our salt and pepper are in the pillar shape and done in the ribbed pattern. They have the standard metal shaker caps found on the ribbed shakers as well as being in a Pairpoint frame as would be required.
The glass is in excellent plus to very good conditions. The pepper shaker has more of and darker salmon color. It's glass is the excellent with no cracks, chips, nicks, scratches, abrasions or repairs. The salt shaker is the less, lighter salmon color and is the very good condition. It has no cracks, nicks, scratches, abrasions or repairs. At the bottom of the shaker affecting two of the ribs is a flake like shaped chip and some bruising with some hairline borders (photo #8). The left rib has a bruise that is the entire width of the rib 1/4" x 7/16" tall. The right rib has a bruise and a flake like chip with their combined measurement being 7/16" tall x a hair over 1/8" at widest point. The bruise area is 2/8" at tallest point x 3/16" at widest point. The actual missing glass flake shape chip is 1/8" wide at base x a hair over 1/4" at tallest point.
The frame is marked # 722 and is silver plated Pairpoint, Pairpoint being required for Mt. Washington items. It's metal is in excellent plus condition with no rips, dents, scratches, holes, missing pieces or repairs. It's oval base has a hand hammered cast pattern with a granulated like textured surface. The frame has it's original four ball feet and it sits very stable on my desk. I gave the frame a light cleaning as I wanted tarnish (called patina) to still be in the granulation to enable the pattern to show well in photos. The plate will clean up some more overall but we advise against getting it too shiny. The bottom of the frame has it's Pairpoint marks as seen in the photo.
The shaker tops are the same shape as we see on almost every pillar ribbed shaker. The collar is adhered to the shaker and the cap portion unscrews. Both cap's screw threads are intact and the collars are firm in their attachment. The salt cap is in excellent condition. With never seeing the set new or photos looking down on the top of the cap I am unsure if the slightly un-even edge rims to the approx. 1/16" holes are original to the cap (photo #6). The pepper cap has larger approx. 1/8" holes with definite un-even rims. There is a 1/16" x 1/32" hole in the cap's side as well as some un-even surface (photo # 7) to the collar. It looks like the mold had some interior residue and or flaws.
The shakers are approx. 4" tall with their caps with a 1 1/2" dia. base. The frame is 7 1/4" tall thru the handle and has a 2" x 4 1/2" oval base. As stated before the glass has no marks and the frame has appropriate Pairpoint marks.
The Mt. Washington Glass Company originated in 1837. Frederick Shirley the general manager of Mt. Washington invented the Burmese glass formula, a beautiful coloration of salmon blending into yellow, and patented it in 1885. In 1886 as a marketing tool he presented Queen Victoria and President and Mrs. Grover Cleveland with gifts of Burmese glass. Queen Victoria was so enamored with it that she ordered more pieces and at her request Mt. Washington gave Thomas Webb & Sons of England authorization to produce it. Per info on the Pairpoint (still in business today) website Mt. Washington merged with Pairpoint Manufacturing in 1880. Per the Corning Museum and Mt. Washington Pairpoint Glass Society they merged in the early 1890's. After the merger Mt. Washington still produced glass items as a division of Pairpoint until possibly 1915. But whatever the date some of the most wonderful American art glass items and if applicable their metal accessories were created and can still be found today. Some of these forms of art glass are Amberina, Peachblow, Cameo, Royal Flemish, Satin Glass, Coralene and two of my favorites, Crown Milano and Pairpoint Puffy Lamps.