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| 12 inch RA drive on Alvin Clark 12 inch refractor at University of Pittsburgh. | |
| Featuring these Optic-Craft products: |
Home - Telescope Mounts - Clock Drives - Gallery Photos - Gallery Photos with Descriptions
| |
| 12 inch RA drive on Alvin Clark 12 inch refractor at University of Pittsburgh. | |
| Featuring these Optic-Craft products: |
