Please, I am cleaning out a hardware store in Ontario, Canada and have found glass tubes of various sizes. The labels have a trade mark that says J Tomey & Sons, Makers EST 1855 Eureka Guage Glass. Also around the label it says Genuine Scotch Guage Glass. Could anyone tell me what these were for and if there is a market somewhere for them. Really don't want to throw them out, its heavy walled glass, nice.