I am hoping to get a quick response here. I currently have a chance to get a nice set of lab glassware and was needing to know if this is indeed lab glassware or some knock off as i have never seen it in any of my labs. The glassware is not your typical Pyrex, but something called T.C.W. USA. as all of the bottles have this molded on the bottom. They are chemical reagent bottles with ground glass stoppers and i was also wondering, if these are genuine lab glassware reagent bottles, are they antique or something as i have never seen these in any of my labs, it is typically always Pyrex or an unmarked maker.
Thanks for any future comments.