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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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