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- Corporate/Agency Authors:
- Assay Commission, Treasury Department, and Mint Bureau
- Publisher:
- Assay Commission
- Date:
- 1931
- SuDoc number:
- T 28.5:931
- Corporate/Agency Authors:
- Assay Commission, Mint Bureau, and Treasury Department
- Publisher:
- Assay Commission
- Date:
- 1930
- SuDoc number:
- T 28.5:930