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

Specimen #10

Specimen #10 Acid Test

Specimen #10

Specimen #11

Specimen #11 Acid Test

Specimen #11 Hardness Test