does anyone know how much my antique thermometer is worth?
This slender glass tube with an enclosed glass bulb at one end containing mercury is also known as a thermometer. It has a numbered scale that is sealed in and rises and falls with changes of temperature. It is held within a metal case (possibly aluminum or sterling silver), with a chain attached to the case. Case dimensions: 10.5 x 1.5 cm...I found this pic that looks just like it http://www.doctorbag.org/thermometer.htm mine was made by johnson and johnson
My suggestion would be to take it to an reputable antique dealer to see if they can appraise it for you.
Measuring temperatures in hard to reach locations or over extended periods can be difficult. Doing it in facilities where glass is prohibited can present more challenges. Data loggers and probes can be expensive and are often difficult to read and interpret quickly, often requiring a computer and power source. Our range of temperature labels can be placed on any clean, dry surface to give a visual indication of temperature. They are used in many different applications. Some customers use them in food plants to show temperature achievement in thermal processes. Others use them for measuring temperature in cleaning processes, from laundry to storage tanks, and they have been used in everything from military jets to Formula 1 cars. They're a very cost effective, reliable way of getting a temperature reading in difficult circumstances – in fact the only place where they won't work is in a vacuum!
We have a hug range of temperature stickers that cover a range from 29ºC / 84F to 290ºC / 554F. You can choose from labels with one temperature on them or labels with up to 10 temperatures in an increasing scale. If you don't see the label you need then we can make it for you, with your own logo and a choice of label colors – we can even vary the color change of the indicator! Some minimum quantities and set-up costs apply and these enable us to provide you a fully bespoke product for your specific application.
The labels need to be placed on a clean, dry surface (ideally flat but not essential).
If the stickers are to be placed in high impact environments, we recommend that a couple of coats of clear epoxy are brushed over the label to seal it in place. Remember: the labels react according to the temperature of the surface to which they are applied, and are designed to be read and interpreted in situ. They are easy to read and we have a number of labels with several temperatures that feature larger surface area and multiple temperatures to make this process easier. If you need a permanent record, we recommend that the indicator is mounted on a card or tag that is designed to carry text or be written on by users. Peeling the indicator off a surface can affect the permanence of the color change so we designed a Tyvek backing card and created our Thermal Process Check product. We can design backing cards and tags to meet specific customer requirements.
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