Description and research notes
A monumental survivor from Australia’s private banking era, this £100 specimen ranks among the most important colonial-era notes known. Printed circa 1880–1910 for the Commercial Bank of Australia Limited, it represents the uppermost denomination produced under the private-issue system that existed before the Commonwealth took full control of note issuance in 1910. No issued examples of this £100 are believed to have survived, making specimens the only remaining documentation of the type.
Engraved by Bradbury, Wilkinson & Co. in London and printed locally by Sands & McDougall in Melbourne, the note embodies the cooperative evolution of Australian banknote production. Bradbury, Wilkinson supplied the master plates, security devices, and engraving framework, while Sands & McDougall executed local printing to supply the bank's circulation demands across Victoria and the wider Australian colonies. The imprint 'Bradbury, Wilkinson & Co., Engravers, London' confirms its master-plate origin, while the local printer’s marks establish the dual-track production typical of the late colonial banking era.
The central vignette features an allegorical figure of Commerce, holding a caduceus and globe, framed by intricate lathe-work and industrial motifs representing trade, manufacturing, and the expansion of colonial wealth. The vertical inscriptions in both Chinese and English remain one of the most unusual design choices of any 19th-century Australian note. Their presence reflects the multicultural commercial environment of the Victorian gold-rush decades, when Chinese merchants, laborers, and trading houses played a major role in the region’s economy. Very few banknotes from anywhere in the British Empire incorporated bilingual Chinese text, making this a highly significant survivor in global numismatics.
This specimen carries prefix A1, placing it within the earliest control sequence (A1–A500). Evidence indicates that issued £100 notes were fully redeemed and destroyed, as high-denomination colonial notes typically had short life spans, strict redemption procedures, and low survival rates due to institutional consolidation. The perforated 'BW & Co LONDON' cancellation and printer annotations confirm that this example was withdrawn from production and preserved exclusively for archival or approval purposes.
The historical context of this note is equally important. Before the 1910 Australian Notes Act, each major commercial bank operated as both a private deposit institution and a note-issuing authority, backed by gold reserves and subject to varying degrees of colonial regulation. The Commercial Bank of Australia was among the most prominent issuers, and its large denominations were used for interbank settlement, bullion transactions, and wholesale commercial payments. These notes circulated in an economy that was rapidly industrialising and integrating into global commodity markets through wool, gold, minerals, and agricultural exports.
When the Commonwealth centralized currency authority in 1910 and later established the Australian Notes Branch (and eventually the Reserve Bank), nearly all private banknote issues were recalled and destroyed. As a result, only specimen or printer’s archival material survived for many denominations. For the £100 type, the absence of issued survivors underscores the near-total eradication of high-value private currency from the record.
Pick Unlisted and absent from major catalogues, this note represents the intersection of rarity, artistry, and historical significance. With PMG 64 Choice Uncirculated assigned and no higher examples known, it stands as the finest known example of the Commercial Bank of Australia’s highest denomination. This specimen is the only known example worldwide, including institutional and archival holdings, placing it firmly in the R9 tier of extreme rarity. As a design artifact, a cultural document, and a financial relic from the end of Australia’s private-banknote era, this piece is an educational cornerstone for advanced Commonwealth collections and a critical reference in the study of pre-federation monetary history.