# Relationship history for MSHA mine 0202194

Current hierarchy: **Mary K  Konshur → Treasure Chest Granite Pit LLC → TREASURE CHEST GRANITE PIT LLC**

- 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

- **operator_operates_mine:** Scala Granite Company → TREASURE CHEST GRANITE PIT LLC; 1984-03-01 to 1986-10-20; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Scala → TREASURE CHEST GRANITE PIT LLC; 1984-03-01 to 1986-10-20; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Scala → Scala Granite Company; 1984-03-01 to 1986-10-20; source msha-controller-operator-history
- **operator_operates_mine:** Scala Granite Inc → TREASURE CHEST GRANITE PIT LLC; 1986-10-21 to 1990-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Barbara  Scala → TREASURE CHEST GRANITE PIT LLC; 1986-10-21 to 1990-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Barbara  Scala → Scala Granite Inc; 1986-10-21 to 1990-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Treasure Chest Mining Company → TREASURE CHEST GRANITE PIT LLC; 1990-11-01 to 1996-04-23; source msha-controller-operator-history
- **controller_controls_mine:** Ray  Bossey → TREASURE CHEST GRANITE PIT LLC; 1990-11-01 to 1996-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Ray  Bossey → Treasure Chest Mining Company; 1990-11-01 to 1996-04-23; source msha-controller-operator-history
- **operator_operates_mine:** Treasure Chest Granite Pit, Inc. → TREASURE CHEST GRANITE PIT LLC; 1996-04-24 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Mary K  Konshur → TREASURE CHEST GRANITE PIT LLC; 1996-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mary K  Konshur → Treasure Chest Granite Pit, Inc.; 1996-04-24 to 2009-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Treasure Chest Granite Pit LLC → TREASURE CHEST GRANITE PIT LLC; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mary K  Konshur → TREASURE CHEST GRANITE PIT LLC; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mary K  Konshur → Treasure Chest Granite Pit LLC; 2009-04-30 to current/open; source msha-controller-operator-history