Small 6oz Ball brand clear glass canning jar, lid and band. Newly purchased in 2017. Tested with an XRF instrument. “Non-Detect” (negative) for lead (Pb), mercury (Hg), arsenic (As) and cadmium (Cd.) We use Ball brand canning jars (of all sizes) every day in our home. While the lids are free of the toxicants listed above they are still coated in plastic and have other issues – fortunately there are quite a few lid alternatives out there (and it is my understanding that the new Ball brand canning jar lids are now BPA-free.)
Thanks to Georgina Ellis Smith for donating and supporting this post!