<a class="ck-btn" target="_blank" rel="noopener noreferrer" href="https://competent-prize-bbe30fc6a2.media.strapiapp.com/S25021_General_Insides_Online_9d9d853453.pdf" download="download">View Auction Catalogue</a>Sale No. S25021&nbsp;Please note our Buyer’s Premium has changed to 23% + VAT effective from the 1st of December 2025

large_PETRA.jpg

medium_PETRA.jpg

small_PETRA.jpg

thumbnail_PETRA.jpg

xlarge_PETRA.jpg

PETRA.jpg

small_sbg-logo (1).png

thumbnail_sbg-logo (1).png

sbg-logo (1).png

A H Baldwin & Sons Ltd has a history that dates back to 1872, and is one of the largest and longest established numismatic dealers and auction houses in the world. As a distinguished name in the numismatic trade, they have seamlessly transitioned into the world of bullion, bringing unparalleled expertise and commitment to quality to a broader audience.

Established in 1872, Baldwin's has been a cornerstone of the numismatic trade, earning a reputation for integrity, authenticity, and a passion for the rare and precious. For over a century and a half, we have been at the forefront of preserving and promoting the art and history encapsulated within rare coins and precious metals.

large_SGB Logo RGB stacked teal.png

medium_SGB Logo RGB stacked teal.png

small_SGB Logo RGB stacked teal.png

thumbnail_SGB Logo RGB stacked teal.png

xlarge_SGB Logo RGB stacked teal.png

SGB Logo RGB stacked teal.png

Official. 1931 (4 May) Kingsford Smith 2d rose-red and 3d blue, opt 'O S', upper left corner blocks of 4 with plate number ‘5’ (2d) or ‘1’ (3d), fresh mint unmounted o.g. (hinged in top margin), a superb and highly desirable pair from the special album presented to the Duke of Gloucester in 1934. SG O123/24 (BW 141(OS)/142(OS), cat A$9500+)

Australia SG O123/24 1931 Official Kingsford Smith 2d, 3d plate blocks unmounted

0001_XDnpox.jpeg

Margin Scheme

Australia SG O123/24 1931 Official Kingsford Smith 2d, 3d plate blocks unmounted

Description

Footnote