Marengo 20 Lire or Kangaroo 1 oz: which is the better buy today?
Marengo 20 Lire holds 5.81 g of fine gold and Kangaroo 1 oz 31.10 g: Kangaroo 1 oz holds 5.36 times the gold of Marengo 20 Lire. The metal costs the same per gram in both; what differs is how much of the price is the coin rather than the gold — and the small one always carries more of it.
| coin | Marengo 20 Lire | Kangaroo 1 oz |
|---|---|---|
| fine gold | 5.81 g | 31.10 g |
| gross weight | 6.45 g | 31.10 g |
| purity | 900 ‰ · 21.6 kt | 999.9 ‰ · 24 kt |
| diameter | 21 mm | 32.1 mm |
| thickness | 1.30 mm | 2.60 mm |
| face value | 20 lire | 100 dollars |
| struck | Italy · 1861–1897 | Australia · since 1986 |
The prices come from the feed, and the feed has not answered yet.
Marengo 20 Lire — The Italian 20 lire of the Latin Monetary Union — the same 5.81 g of gold as a Napoléon or a Vreneli, which is why the three trade together.
Kangaroo 1 oz — Perth’s one-ounce coin, struck in pure gold since 1986 and redesigned every year — the reverse is a different kangaroo each time.
Marengo 20 Lire is 900 ‰ · 21.6 kt, so it weighs 6.45 g for its 5.81 g of gold; Kangaroo 1 oz is 999.9 ‰ · 24 kt, 31.10 g on the scale. Neither holds more gold for the difference: the alloy is hardness, which is why Marengo 20 Lire can be handled and Kangaroo 1 oz travels in a capsule.
Marengo 20 Lire was money before it was an investment — struck from 1861 to 1897 — and is bought today as a bullion coin on the strength of being recognised everywhere; Kangaroo 1 oz has been struck for investors since 1986, and its price is the metal plus the mint’s and the dealer’s margin, nothing else.
What decides between them is not the gold, which costs the same per gram in both, but everything charged per coin: striking, distribution, the shop’s margin. Spread over 5.81 g the small coin carries far more of it per gram than the big one does over 31.10 g — which is why Marengo 20 Lire is nearly always the dearer gold, and why it is bought anyway: it sells in smaller pieces, and sells everywhere.