VINTAGE 4” LOT OF 53 MEDICAL SCIENCE LAB PYREX GLASS TEST TUBES ODDITY

Pre-owned, lot of 53, Pyrex brand, glass test tubes. Some are stamped with the Pyrex info - some are not. (See photos for details) I am the original owner. It has been in climate controlled for decades. Part of my late father in law’s medical practice. Comes from a pet and smoke free home. Sizse: .5” diameter x 4” tall