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Specimen #1
Specimen #1
Specimen #1
Specimen #1 Acid Test
Specimen #2
Specimen #2
Specimen #2 Acid Test
Specimen #3
Specimen #3
Specimen #3
Specimen #4
Specimen #5
Specimen #5
Specimen #6
Specimen #6
Specimen #6
Specimen #7
Specimen #7
Specimen #7
Specimen #7 Acid Test
Specimen #8
Specimen #8
Specimen # 8 Acid Test
Specimen #9
Specimen #9 Hardness Test
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