--- title: "GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN" url: "https://www.coinsntreasures.com/GREECE-2025-ANCIENT-PTOLEMYS-ASTROLABE-SILVER-PROOF-COIN/" type: "product" brand: "Bank Of Greece" sku: "4388" model: "4388" price: "130.00€" currency: "EUR" availability: "in stock" categories: - "WORLD COINS" - "EURO €" - "GREECE" - "GREECE" image: "https://www.coinsntreasures.com/image/catalog/old/product_images/m/994/greece-2025-ancient-greek-technology-ptolemys-astrolabe-silver-proof-coin-22268-68511.jpg" store: "coinsntreasures.com" language: "en-gb" updated: "2026-10-27" --- # GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN - **Price:** 130.00€ incl. VAT - **Availability:** in stock - **Brand:** Bank Of Greece - **Model:** 4388 - **Category:** WORLD COINS, EURO €, GREECE, GREECE - **Shipping:** free, delivery 1-3 business days to GR - **Returns:** 14 days, return shipping paid by the customer - **Buy:** https://www.coinsntreasures.com/GREECE-2025-ANCIENT-PTOLEMYS-ASTROLABE-SILVER-PROOF-COIN/ ## Description GREECE 2025 ANCIENT PTOLEMYS ASTROLABE SILVER PROOF COIN ANCIENT GREEK TECHNOLOGY **Denomination:** €10 **Diameter:** 40 mm **Weight:** 34.10 gr **Edge:** plain **Material:** silver (Ag) 92.5% **Packaging:** coin box with certificate of authenticity **Maximum issue:** 2,000 pieces **Minting quality:** proof **Coin designed by:** G. Stamatopoulos Ptolemy’s astrolabe (or spherical astrolabe) was an ingenuous astronomical instrument of antiquity. It simulated the celestial sphere and its revolution. Unlike solid celestial globes marking the positions of the major stars and constellations, it is an armillary sphere: the principal celestial circles (equator, ecliptic with the zodiac constellations, etc.) are represented by seven rings articulated together. The outer rings were used for adjusting to the observer’s meridian and latitude, while the inner rings were calibrated and equipped with sights. Thanks to the use of sights, Ptolemy’s astrolabe, in addition to serving as a common teaching tool, was also used as an instrument of observation for measuring and recording the coordinates of stars and planets. Although no such astrolabe has survived, Claudius Ptolemy (100-170 AD) described the instrument in detail in his *Syntaxis* *mathematica* or *Megiste* , known in the West as *Almagest* . The design of Ptolemy’s astrolabe on the obverse of the coin is based on a reconstruction by the Kotsanas Museum of Ancient Greek Technology. ## Specifications | Attribute | Value | | --- | --- | | Weight | 0.07 Κ | ## FAQ ### What is GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN? GREECE 2025 ANCIENT PTOLEMYS ASTROLABE SILVER PROOF COIN. ### Which brand makes GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN? GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN is made by Bank Of Greece. ### What are its main specifications? Denomination: €10. Diameter: 40 mm. Weight: 34.10 gr. Edge: plain. Material: silver (Ag) 92.5%. Packaging: coin box with certificate of authenticity. ### Is it available? Yes, GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN is in stock and can be ordered online from coinsntreasures.com. ### What is the product code? The code is 4388. ## Images ![GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN](https://www.coinsntreasures.com/image/catalog/old/product_images/m/994/greece-2025-ancient-greek-technology-ptolemys-astrolabe-silver-proof-coin-22268-68511.jpg) ![GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN 2](https://www.coinsntreasures.com/image/catalog/old/product_images/b/494/greece-2025-ancient-greek-technology-ptolemys-astrolabe-silver-proof-coin-22600-16419.jpg) ![GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN 3](https://www.coinsntreasures.com/image/catalog/old/product_images/f/796/greece-2025-ancient-greek-technology-ptolemys-astrolabe-silver-proof-coin-22598-69078.jpg) ![GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN 4](https://www.coinsntreasures.com/image/catalog/old/product_images/w/965/greece-2025-ancient-greek-technology-ptolemys-astrolabe-silver-proof-coin-22601-57085.jpg) ![GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN 5](https://www.coinsntreasures.com/image/catalog/old/product_images/z/255/greece-2025-ancient-greek-technology-ptolemys-astrolabe-silver-proof-coin-22597-98944.jpg) ![GREECE 2025 ANCIENT GREEK TECHNOLOGY - PTOLEMYS ASTROLABE SILVER PROOF COIN 6](https://www.coinsntreasures.com/image/catalog/old/product_images/l/387/greece-2025-ancient-greek-technology-ptolemys-astrolabe-silver-proof-coin-22599-04480.jpg) ## Related products - [CYPRUS 2010 GOLD PROOF 20 EURO 50th Anniversary of the Republic of Cyprus BOX + COA](https://www.coinsntreasures.com/cyprus-2010-gold-proof-20-euro-50th-anniversary-of-the-republic-of-cyprus-box-coa/): 1,300.00€ - [GREECE 2022 THE ANTIKYTHERA MECHANISM SILVER PROOF COIN](https://www.coinsntreasures.com/GREECE-2022-THE-ANTIKYTHERA-MECHANISM-SILVER-PROOF-COIN/): 160.00€ - [Cyprus 2025 Silver Proof coin 70 Years EOKA Anniversary](https://www.coinsntreasures.com/cypruscyprus-2025-silver-proof-coin-70-years-eoka-anniversary/): 135.00€ - [GREECE 2026 IOANNIS KAPODISTRIAS SILVER PROOF COIN](https://www.coinsntreasures.com/greecegreece-2026-ioannis-kapodistrias-silver-proof-coin/): 160.00€ - [GREECE 2026 ANCIENT TECHNOLOGY THE HYDRAULIS OF KTESIBIOS SILVER PROOF COIN](https://www.coinsntreasures.com/greece-2026-ancient-technology-the-hydraulis-of-ktesibios-silver-proof-coin-html/): 165.00€