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Australia 1929 Commercial Banking Company of Sydney Limited Circular Letter of Introduction photographic proof mounted on cardstock PCGS 50 About New

Australia 1929 - Commercial Banking Company of Sydney Limited - Circular Letter of Introduction Photographic Proof (Mounted on Cardstock, PCGS 50 About New)

The design reflects security printing practices closely aligned with banknote production. The layout combines a structured writing field with dense guilloche ornamentation and a prominent central rosette, which serves both aesthetic and anti-fraud purposes. The open central panel was intended for controlled handwritten or typed entries, while the surrounding engraved framework provided resistance to alteration and unauthorized reproduction. The balance between blank space and intricate line work illustrates a deliberate hybrid between negotiable instrument and high-security document. Read more →

AustraliaPhotographic Proof Letter of Introduction1929Not Applicable (Letter of Introduction)PCGS 50 About New Photographic ProofLetter of IntroductionCircular Letter of IntroductionIdentity Financial InstrumentBanking Correspondence DocumentHigh Security DocumentGuilloche DesignCentral RosetteMounted on CardstockArchival ProofLondon Security PrintingPre engraving production stageCommercial Banking Company of Sydney LimitedCorrespondent Banking NetworkInternational Banking SystemFinancial Identity VerificationInterwar FinanceHistoryAustralia1929PCGS 50About NewMuseum Grade
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Australia 1929 Commercial Banking Company of Sydney Limited Circular Letter of Credit photographic proof mounted on cardstock PCGS 64 Very Choice New

Australia 1929 - Commercial Banking Company of Sydney Limited - Circular Letter of Credit Photographic Proof (Mounted on Cardstock, PCGS 64 Very Choice New)

Certified PCGS 64 Very Choice New, the proof retains strong visual clarity and structural integrity. Its preserved photographic surface and original mounting reflect its role within the design and approval process, offering direct insight into the production of high-security financial documents tied to early international credit systems.

International Banking Document Financial Draft Document Security Printing London Security Printing
Commercial Banking Company of Sydney LIMITED £5 proof, circa 1905–1910, PMG 63 EPQ

Australia 1905–1910 - Commercial Banking Company of Sydney LIMITED £5 Specimen Proof (Pick Unlisted)

Bradbury Wilkinson’s master plates reflect the mature internationalisation of security printing. By 1905–1910, Australian banks increasingly relied on London engravers for their highest-grade notes, as BWC offered complex tint-stone methods, deep intaglio capability, and anti-counterfeiting technologies unattainable in most colonial print shops. These proof specimens were the pinnacle of that relationship, produced in tiny numbers for board approval, archival retention, or printer-client authentication.

Engraved Security Printing Security Printing History
Australia 1965 20 Dollars traveller's cheque rejected design proof prepared by Bradbury Wilkinson and Company, London, for The Commercial Banking Company of Sydney Limited, printed in blue-green and lavender with central Australia map motif, right-side control punch, printed facsimile signatures, top submission note dated 23 March 1965, and left-margin rejection annotation referring to the 12 April 1965 letter.

Australia 1965 - Commercial Banking Company of Sydney Limited 20 Dollars Travellers Cheque Rejected Design Proof (Pick Unlisted)

The design is visually rich and highly finished, showing Bradbury Wilkinson and Company's mature security-printing language in full expression. Blue-green and lavender toning is organized through a dense guilloche framework, over which the central inscription panel is set with formal clarity. Behind the lettering appears the large pale Australia map motif carrying the circular "C.B.C." medallion, a unifying emblem used across the series. The denomination tablets, broad signature line, and carefully balanced engraved borders give the proof a dignified corporate presence while preserving the elegance expected of a major London security printer working for an Australian banking institution at the threshold of decimal reform.

Security Printing Proof London Security Printer
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