Status of OKeh Matrix Series
Ranges of matrix numbers, 1918-1931 |
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| Matrix Series | Description | Status |
| 100-S-905 | 10 in. acoustic masters, 1918-1919 | Complete |
| S-7001-S-7999 | 10 in. acoustic masters, 1919-1921 |
Complete |
| 8000-9000 | 10 in. acoustic masters, field trips, 1921-1926 |
Complete |
| 70001-74375 | 10 in. acoustic masters, 1921-1926 | Complete |
| 80001- | 10 in. electrical masters, 1927 (Truetone system) |
Complete |
| W140000 | 10 in. electrical masters, 1926-1931 (Western Electric system) | In process |