Estimate: 10.000 $Ancients:
SICILY. Syracuse.
Dionysius I (405-367 BC).
AR decadrachm (35mm, 41.83 gm, 10h).
NGC Choice XF 4/5 - 3/5, Fine Style.33002
Estimate: 15.000 $Ancients:
Julius Caesar, as Consul for the Third Time (46 BC),
with Aulus Hirtius, as Praetor.
AV aureus (21mm, 8.15 gm, 3h).
NGC Choice AU★ 5/5 - 5/5.33022
Estimate: 12.500 $Ancients:
Hadrian (AD 117-138).
AV aureus (20mm, 7.31 gm, 6h).
NGC Choice AU★ 5/5 - 5/5,
Fine Style.33029
Estimate: 6.500 $Ancients:
Faustina Junior (AD 147-175/176).
AV aureus (18mm, 7.37 gm, 6h).
NGC Choice AU 5/5 - 3/5, light marks.33031
Estimate: 40.000 $Ancients:
Pertinax (1 January-28 March AD 193).
AV aureus (20mm, 7.20 gm, 5h).
NGC Gem MS 5/5 - 5/5, Fine Style.33032
Estimate: 50.000 $Great Britain:
George V
gold Proof Pattern Crown 1935
PR64+ Ultra Cameo NGC33163
Estimate: 15.000 $Mexico:
Republic silver Proof Pattern 8 Reales 1827
Go-WW PR64 Cameo NGC.
From the Eternal Collection, Part II31081
Estimate: 50.000 $Netherlands East Indies:
Dutch Colony. United East India Company (VOC)
gold Proof Pattern Ducaton 1728 PR63 NGC.
From the Peh Family Collection, Part II30167
Estimate: 150.000 $Russia:
Nicholas I
Proof Pattern "Imperial Family"
1-1/2 Roubles - 10 Zlotych 1835
PR63 PCGS33236
Estimate: 50.000 $South Africa:
Republic gold Proof 6 Pence 1897
PR63 Cameo NGC.
From the Gatsby Collection, Part II32030

Archive: Coins, Medals and more

State-of-the-Art Minting Technology

Colours, special shapes, inlays, micro inscriptions, latent images and holograms – many technologies are used on commemorative coins today. In this article, we give you a little overview of the different technologies that are currently applied in the coin producing industry.

Coloured Metal from Austria: Niobium Coins

In 2003, the Austrian Mint introduced a new metal with exciting characteristics to the world of coins: niobium. The beginning of a success story.
Schätzpreis: 10.000 $Ancients:
SICILY. Syracuse.
Dionysius I (405-367 BC).
AR decadrachm (35mm, 41.83 gm, 10h).
NGC Choice XF 4/5 - 3/5, Fine Style.33002
Schätzpreis: 15.000 $Ancients:
Julius Caesar, as Consul for the Third Time (46 BC),
with Aulus Hirtius, as Praetor.
AV aureus (21mm, 8.15 gm, 3h).
NGC Choice AU★ 5/5 - 5/5.33022
Schätzpreis: 12.500 $Ancients:
Hadrian (AD 117-138).
AV aureus (20mm, 7.31 gm, 6h).
NGC Choice AU★ 5/5 - 5/5,
Fine Style.33029
Schätzpreis: 6.500 $Ancients:
Faustina Junior (AD 147-175/176).
AV aureus (18mm, 7.37 gm, 6h).
NGC Choice AU 5/5 - 3/5, light marks.33031
Schätzpreis: 40.000 $Ancients:
Pertinax (1 January-28 March AD 193).
AV aureus (20mm, 7.20 gm, 5h).
NGC Gem MS 5/5 - 5/5, Fine Style.33032
Schätzpreis: 50.000 $Great Britain:
George V
gold Proof Pattern Crown 1935
PR64+ Ultra Cameo NGC33163
Schätzpreis: 15.000 $Mexico:
Republic silver Proof Pattern 8 Reales 1827
Go-WW PR64 Cameo NGC.
From the Eternal Collection, Part II31081
Schätzpreis: 50.000 $Netherlands East Indies:
Dutch Colony. United East India Company (VOC)
gold Proof Pattern Ducaton 1728 PR63 NGC.
From the Peh Family Collection, Part II30167
Schätzpreis: 150.000 $Russia:
Nicholas I
Proof Pattern "Imperial Family"
1-1/2 Roubles - 10 Zlotych 1835
PR63 PCGS33236
Schätzpreis: 50.000 $South Africa:
Republic gold Proof 6 Pence 1897
PR63 Cameo NGC.
From the Gatsby Collection, Part II32030

Archive: People and Markets

CoinsWeekly Special Issue for the Evento Numismático International Madrid 2025

On the occasion of the 2025 Evento Numismático International in Madrid, we are once again publishing one of our printed CoinsWeekly Special Issues, this time in Spanish. Read all about the Traveling Emperor Hadrian and his coinage.

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Certified Collectibles Group Opens Office in Dubai

The Certified Collectibles Group has opened an office in Dubai. Collectors and dealers in the Middle East now have easier access to expert authentication, grading and encapsulation services provided by NGC, PMG, CGC and JSA.

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