Museum Quality Carboniferous Fern Fossil St. Clair Mine PA #6, Walnut Mounted Antique Fully illustrated with hundreds of

Fully illustrated with hundreds of illustrations they cover all aspects of making a functioning telescope

I just cleaned and oiled them and they retain no malodor

thanks to the internal antenna

"How to Use a Slide Rule" manual dated 1942

The pattern here is one that features Little Bo Peep and her sheep

Museum Quality Carboniferous Fern Fossil St. Clair Mine PA #6, Walnut Mounted Antique Fully illustrated with hundreds ofMy Dad brought this back from a trip to the St. Clair Mine store in Schuylkill County, PA, in 1957. The mine was notable for the abundance of plant fossils found in the Llewellyn Formation (300 mya, Pennsylvanian Period) and are one of the few places where one can find these very detailed white, sometimes yellow and orange ferns on a striking contrast of black shale. This specimin is notable in presenting all 3 colors. The plants died and fell into