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- Object[12]
- yes[12]
- no[12]
- american[12]
- bucks county[12]
- delaware river[6]
- doylestown[12]
- pennsylvania[12]
- united states of america[12]
- argillaceous material[2]
- argillite[5]
- jasper[1]
- quartz[1]
- stone[3]
1 - 12 of 12 Records
1 - 12 of 12 Records