"A1" and "413" -- penciled in on lower left corner of inside mat; "13" -- penciled in on lower right corner of inside mat.
Photographed October 2009 (Photography no. 1000078622).
Dimensions include mat.
Advertisement for an exhibition featuring "Madam J. Rieth, lady glass blower and artiste in glass, Prof. John Rieth, champion glass blower of America" as well as Christian Mayer, Thos. F. Curran, and W. Jerome Earl, the "celebrated glassoblowoprestitwistidigitator". Featured in the exhibition is the Fairy Queen, "the largest glass steam engine in the world" and a glass dress and shawl.
"(ca. 1890) OK" -- penciled in on lower right corner of ad.