• Banco Nacional Ultramarino Currency & Banknote Values

Banknote Book® Price Guide

coin-icon-tr
Values / World Currency / Portuguese Guinea / Banco Nacional Ultramarino

Sort by

Sponsor

shop Whitman

Sponsor

shop David Lawrence Rare Coins

Sponsor

shop eBay

Sponsor

shop US Coins and Jewelry

Sponsor

shop Great Collections

The Banco Nacional Ultramarino series of Portuguese Guinea in the World Currency contains 310 distinct entries. On 16 May 1864, the Banco Nacional Ultramarino (National Overseas Bank, BNU) was established in Lisbon as a private issuing bank for Portugal’s overseas territories. Over time, the BNU would

The Banco Nacional Ultramarino series of Portuguese Guinea in the World Currency contains 310 distinct entries.

On 16 May 1864, the Banco Nacional Ultramarino (National Overseas Bank, BNU) was established in Lisbon as a private issuing bank for Portugal’s overseas territories. Over time, the BNU would issue notes in Angola, Cape Verde, Macau, Mozambique, Portuguese Guinea, Portuguese India, São Tomé and Príncipe, and Timor.

The BNU’s branch in Bolama, Portuguese Guinea opened in 1903.

In 2001, the BNU was nationalized when it merged with Caixa Geral de Depósitos, the government-owned savings bank, although it continues operations today under the Banco Nacional Ultramarino brand in Macau, where it continues to issue Macanese pataca banknotes. For more information, visit www.bnu.com.mo.

For signatures appearing on Portuguese colonial notes, see Banco Nacional Ultramarino, a separate chapter.

See More See Less

Sponsor

shop Whitman

Sponsor

shop David Lawrence Rare Coins

Sponsor

shop eBay

Sponsor

shop US Coins and Jewelry

Sponsor

shop Great Collections

Sponsor

shop

Available on Greysheet Marketplace

View All
1837 3c Feuchtwanger, New York MS

Auction Ends: 5/26/2026

1919 5c MS

Auction Ends: 4/28/2026

Dealer Directory

View All Dealers

Greysheet News

View All News
Wisconsin Eliminates Exemption Certificate Requirement for Bullion Sales
Wisconsin Eliminates Exemption Certificate Requirement for Bullion Sales
4/27/2026

The National Coin & Bullion Association (NCBA) announces a significant change to Wisconsin's sales- and use-tax treatment of precious-metal bullion that will simplify compliance requirements for dealers, effective March 29, 2026.

Weekly World Mint Coinage: April 23, 2026
Weekly World Mint Coinage: April 23, 2026
4/23/2026

New coins from Japan, Italy, and Malta.

From Stellas to Standouts: Heritage's Star-Studded CSNS U.S. Coins Auction Features Elite Rarities
From Stellas to Standouts: Heritage's Star-Studded CSNS U.S. Coins Auction Features Elite Rarities
4/18/2026

All four gold stellas, 1933 Indian eagle and featured collections among highlights at April 29-May 2 event.

Map icon

DAVID LAWRENCE RARE COINS