-
Ringer Tee: Historic Collections - Gideon Mantell Geologic Strata 1838 -
Ringer Tee: Historic Collections - Levi Yaggy Geology Cross Section 1893 -
Ringer Tee: Historic Collections - Albert Heim Geology Cross Section 1907 -
Graphic Tee: Historic Collections - Gideon Mantell Geologic Strata 1838 -
Graphic Tee: Historic Collections - Albert Heim Geology Cross Section 1907 -
Graphic Tee: Historic Collections - Levi Yaggy Geology Cross Section 1893
