- $16.04 GBP Vintage Cambridge Springs PA USGS Topographical Geological Quadrangle Map 1923
- $16.04 GBP Vintage Ariel Pennsylvania USGS Topographical Geological Quadrangle Map 1928
- $12.83 GBP Vintage Bernville Pennsylvania USGS Topographical Geological Quadrangle Map 1974
- $16.04 GBP Vintage Buckingham PA USGS Topographical Geological Quadrangle Map 1953
- $12.83 GBP Vintage Bethel Pennsylvania USGS Topographical Geological Quadrangle Map 1974
- $12.83 GBP Vintage Telford Pennsylvania USGS Topographical Geological Quadrangle Map 1973
- $10.34 GBP USGS Geologic Map: Rousseau Talc Prospect, Cambridge, Vermont
- $12.83 GBP VTG Cambridge Springs Pennsylvania USGS Topographical Geological Quadrangle Map