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15 records were found. Viewing Records 1 to 15
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BIRUG 245.jpg
Bitumen
BIRUG 245
BIRUG 233.jpg
Coal
BIRUG 233
BIRUG 235.jpg
Coal
BIRUG 235
BIRUG 236.jpg
Coal
BIRUG 236
BIRUG 242.1.jpg
Coal
BIRUG 242
BIRUG 238.jpg
Coal var. Anthracite
BIRUG 238
BIRUG 240.jpg
Coal var. Anthracite
BIRUG 240
BIRUG 243.jpg
Coal var. Anthracite (?)
BIRUG 243
BIRUG 239.jpg
Coal var. Cannel Coal (?)
BIRUG 239
BIRUG 237.jpg
Coal var. Jet
BIRUG 237
BIRUG 241.jpg
Coal var. Jet
BIRUG 241
BIRUG 244.jpg
Elastic Bitumen
BIRUG 244
BIRUG 246.jpg
Elastic Bitumen
BIRUG 246
BIRUG 234.jpg
Elastic Bitumen
BIRUG 234
BIRUG 249.jpg
Pitch
BIRUG 249