Antique Decoartive Metal Desk top Thermometer

Antique Decorative Metal Desk top working Thermometer on the back side it reads:C. Wilder Peterboro N.H. Thermometer measures: 6 1/2″ tall x 4 3/4″ wide x 2 1/4″ deep. Circa 1900.
This is information I found online on Charles Wilder.
Charles Wilder began making thermometers and barometers in 1860 in a former cotton factory in Peterborough, New Hampshire. He had 17 employees in 1876 and made instruments for the US government and for export. The factory had water power from the Contoocook River. Wilder manufactured barometers under the 1860 patent of Lum Woodruff, who had been a weather observer for the Smithsonian Institution in the 1850s. The barometers were very popular in the US at the time. Wilder remained in business until his death in July, 1900. In 1905 the business was sold to the Gurley Instrument Company and was moved to Troy, New York. Around 1920 they morphed into the Wilder-Pike Thermometer Company, again in Troy. Seneca Morris Pike was a Gurley employee who became part owner of the thermometer company. It did not survive the Great Depression of the 1930s and Pike died in 1968.