Description
Including:
- Magnificent Green (English)
- Pigeon Blood Valley (English)
- Contributions to Gemology, No. 2
- Contributions to Gemology, No. 3 & 5
- Contributions to Gemology, No. 4
- Contributions to Gemology, No. 7
- Contributions to Gemology, No. 9
- Contributions to Gemology, No. 10
- Contributions to Gemology, No. 13
- Contributions to Gemology, No. 14
- Contributions to Gemology, Poster