Made by the slide maker and optician Wilkinson and Co. at Holmeside, Sunderland. One slide demonstrates the Earth's motion around the Sun, showing the Parallelism of its Axis, producing the Seasons. The other: This Diagram illustrates the cause of Spring and Neap Tides, and shews the Moon's Phases during its revolution. Both slides are in working order.
- Overall Condition: Very good.
- Size: 17.5 x 10.5 and 17 x 9.2 cm.
- Sold By: Ex Libris
- Contact Person: Dr. P.J.B. Lamb
- Country: South Africa
- Email: [email protected]
- Telephone: 0829364794
- Preferred Payment Methods: EFT or Paypal with a 5% surcharge to cover additional costs.
- Trade Associations: AA Approved
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