This instrument is called a BURTONS VITALOMETER, and was used to measure the health of the tooth pulp.
The case measures 12" tall x 8.5" across x 4.25" deep and is in very good condition. This attractive cabinet sports a 6", circular, front window and comes with all the parts and electrical components as seen in the photos. I have not verified whether this tool functions, but was told that all of the dental instruments were still in use up until the time of the previous owner's retirement.
A unique, visually interesting, piece to add to one's dental collection!
The instrument is made of what appears to be aluminum or stainless steel and is in in excellent condition. The syringe measures about 14 inches long x 3.5 inches wide. The box is complete and a bit tattered -- primarily at the seams. It sports 2 detailed labels as pictured. An unusual and rarely found dental tool of the trade.