NASA scientific glass blower, c. 1963. Full caption: "TOM SEITZ SCIENTIFIC GLASS BLOWER AT GLASS FABRICATION LABORATORY SHOWN CREATING CUSTOM GLASSWARE FOR CHEMICAL PHYSICAL RESEARCH"
Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...ass_blower.jpg
Previously:
https://www.homemadetools.net/forum/...837#post179141
https://www.homemadetools.net/forum/...024#post176118
https://www.homemadetools.net/forum/...258#post165648
https://www.homemadetools.net/forum/...053#post160683
https://www.homemadetools.net/forum/...304#post131095
https://www.homemadetools.net/forum/...482#post162276