Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
-
[1]research packet 1013-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-amethyst-pyc3-pkt-1013-packet-md
-
[2]NHHC/National Archives photograph 19-N-77494, USS AMETHYST (PYc-3), captioned at Hunters Point Navy Yard, San Francisco, 19 May 1944 [other_primary]
- Locator
- NHHC page title, caption, and catalog number 19-N-77494
- Finding type
- historical_record
- Finding
- The NHHC catalog identifies a National Archives photograph as USS AMETHYST (PYc-3) and dates the pictured vessel at Hunters Point Navy Yard, San Francisco, 19 May 1944.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944
- Population
- Ship's company and Navy-yard personnel, 19 May 1944
- Limitations
- Ship identity, designation, date, and location are documented; the photograph does not identify construction materials, asbestos-containing products, work performed, exposure, or present condition.
- Atlas source
- true
- Evidence ID
- ev-uss-amethyst-pyc3-01
-
[3]NHHC/National Archives photograph 19-N-77499, USS AMETHYST (PYc-3), captioned off San Francisco, 19 May 1944 [other_primary]
- Locator
- NHHC page title, caption, and catalog number 19-N-77499
- Finding type
- vessel_history
- Finding
- A second NHHC catalog record identifies USS AMETHYST (PYc-3) off San Francisco on 19 May 1944, corroborating the vessel designation and geographic operating context in the same period as the Hunters Point Navy Yard photograph.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944
- Population
- Ship's company and personnel in the San Francisco area
- Limitations
- This is photographic metadata, not an operational log or material survey. It does not establish asbestos presence, maintenance scope, or individual exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-amethyst-pyc3-02
-
[4]U.S. Navy Filing Manual (1941), PYc designation index [nhhc_danfs]
- Locator
- PYc section and alphabetical index entries for PYc3 / Amethyst
- Finding type
- historical_record
- Finding
- The Navy Filing Manual's PYc index pairs PYc3 with Amethyst and separately distinguishes the PYc coastal-yacht category from the PY yacht category.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941
- Limitations
- This verifies Navy designation nomenclature, not commissioning, construction, propulsion, asbestos content, or service chronology.
- Atlas source
- true
- Evidence ID
- ev-uss-amethyst-pyc3-03
-
[5]U.S. Coast Guard Historian's Office, CG Military Muster Rolls 1941-49 finding aid, RG 26 Entry 108A [other_primary]
- Locator
- U.S. Navy Vessels 1941-1945 table; Box 194 entries for 1944 and 1945
- Finding type
- historical_record
- Finding
- The Coast Guard Historian's Office finding aid lists USS Amethyst (PYC-3) in the U.S. Navy vessels operated by Coast Guard personnel for 1944 and lists USS Amethyst again for 1945, with the records held at the National Archives in RG 26, Entry 108A.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1944-1945
- Population
- Coast Guard personnel assigned to or operating with the vessel
- Limitations
- This is a folder-level finding aid, not the muster-roll contents. It establishes an archival lead and the listed years, but does not establish asbestos, duties, exposure, or the complete Navy lifecycle of the vessel.
- Atlas source
- true
- Evidence ID
- ev-uss-amethyst-pyc3-04
-
[6]Research sweep and source review for USS Amethyst (PYc-3), including NHHC, NARA-linked metadata, Coast Guard finding aid, and official Navy designation material [other_primary]
- Locator
- search_ledger rows sl-uss-amethyst-pyc3-01 through sl-uss-amethyst-pyc3-08
- Finding type
- historical_record
- Finding
- No ship-specific asbestos documentation was located in the authoritative sources successfully reviewed: no survey, abatement record, hazmat disclosure, asbestos product identification, or qualifying litigation record was found. The CourtListener litigation sweep is incomplete because all four required authenticated helper calls were stopped by the fleet-wide pacing guard.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- This is a negative finding about records located, not proof that the hull contained no asbestos and not a litigation clearance. The four CourtListener base queries are recorded as blocked in search_ledger; no asbestos variant was run because no base query completed and variants are prohibited when the base result is unavailable.
- Atlas source
- true
- Evidence ID
- ev-uss-amethyst-pyc3-05