# Relationship history for MSHA mine 3606373

Current hierarchy: **Valeri Carl C → Better Mining Inc → Pritts Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Morchesky James → Pritts Mine; 1974-01-01 to 1977-12-06; source msha-controller-operator-history
- **operator_operates_mine:** Better Mining Corp → Pritts Mine; 1976-04-01 to 1977-10-16; source msha-controller-operator-history
- **controller_controls_operator:** Morchesky James → Better Mining Corp; 1976-04-01 to 1977-10-16; source msha-controller-operator-history
- **operator_operates_mine:** Better Mining Inc → Pritts Mine; 1977-10-17 to 1979-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Blum Bentley J → Pritts Mine; 1977-10-17 to 1979-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Blum Bentley J → Better Mining Inc; 1977-10-17 to 1979-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Better Mining Inc → Pritts Mine; 1979-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Valeri Carl C → Pritts Mine; 1979-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Valeri Carl C → Better Mining Inc; 1979-02-01 to current/open; source msha-controller-operator-history