Category:Gua nyo (gold weight)

The Gua nyo (b) is a historical gold weight in Ghana and the Ivory Coast for the weighting of gold dust.

Regional name variants:

• Gua-Nyon (a) + (b) + (c)
• Jua nyo
• Jua mwa
• Njua nwio
• Asia ne soa (b)
• Dwa nwio

Literally means Gua nyo = “Double-Gua”.

Theoretical weight:

- 28.083 g (Abel)

- 28.7 g (Garrard)

- 28.908 g (Abel)

- 29.114 g (Abel)

Value equivalents:
Probably are equivalent:

1 Gua nyo = 1 Ounce avoirdupois (Trading Ounce)

at the trade with Europeans, because of:

1 Portuguese (Trading-) Onça = 28,6875 g (Portugal, 1735, Zedler)

1 Ounce avoirdupois (trading ounce) = 28,4 g (Great Britain, 1735, Zedler)

1 Amsterdam Ounce (avoirdupois) = 29,2319 g (Netherlands, 1735 Zedler)

1 Rotterdam Ounce (avoirdupois) = 29,0100 g (Netherlands, 1735 Zedler)

1 Middelburg Ounce (avoirdupois) = 29,6019 g (Netherlands, 1735 Zedler)

1 Antwerpen Ounce (avoirdupois) = 29,6019 g (Netherlands, 1735 Zedler)

Real weight of single pieces:

- 28.3 g Inventory number MHNT.ETH.2010.25.024 in the "Muséum de Toulouse" (Scorpion figure)

- 28.7 g Inventory number MHNT.ETH.2010.25.145 in the "Muséum de Toulouse" (Figure of 3 birds (1 great + 2 little) on a rectangular pedestal)

- 28.9 g Inventory number MHNT.ETH.2010.25.179 in the "Muséum de Toulouse" (Ingot-shaped weight with barcode-line-patterned number symbolism)

- 29.3 g Inventory number MHNT.ETH.2010.25.165 in the "Muséum de Toulouse" (Figure of a snake eating a bird. The bird has a ring of metal around the tail as an additionnal weight.)