Anne (1702-1714), Post-Union, Five-Guineas, 1711, DECIMO, diademed and draped bust left, rev. crowned broader shields cr…

SIGNATURE SALES

For exceptional collections that deserve exceptional treatment

Our Signature Sales offer the most prestigious platform in the collecting world. When your collection represents a lifetime's passion or generations of family heritage, we create bespoke auction events that celebrate both the material and its story, ensuring maximum realisations through carefully crafted presentation and global reach.

Our Signature Sales have achieved remarkable results for collectors like yourself – the Phillips Collection of GB Stamps realised over £2 million, whilst the Frank Waley Collection of Hammered and Milled Coins achieved in excess of £500,000. These recent successes reflect our understanding that exceptional collections require more than standard auction treatment; they need dedicated expertise, strategic planning, and the prestige that comes with our 300+ years of combined heritage.

Looking To Sell Your Collection?

Our in-house team are happy to help you through the process.

Request your free valuation

What makes a Signature Sale?

Signature Sales represent the pinnacle of auction presentation – dedicated catalogues, focused marketing campaigns, and the full attention of our world-renowned specialists. These exclusive events are reserved for collections of exceptional quality, rarity, or historical significance that merit individual celebration.

Collections that qualify

Our Signature Sales typically feature collections valued from £100,000 to several million pounds. We look for material that demonstrates exceptional quality, historical importance, or represents comprehensive coverage of a particular area. Whether it's a lifetime's dedication to a specific country or period, or a broad collection spanning multiple categories, we assess each submission on its individual merit.

Single Vendor Sale

Featured collection

A perfect example is the J.W. Phillips Collection, a groundbreaking collection of Great Britain stamps, representing a lifetime of passion for a collector, and a terrifically rare opportunity for buyers.

The collection fetched in excess of £2,000,000 across five auctions and featured a '1864 1d Rose red Pl.77'. One of only three in existence, which sold for £144,000.

"John was a farmer, a keen shot and a very knowledgeable philatelist. A life of agricultural pursuits meant a largely desk based activity was a welcome change from John's busy day to day life. Stamps were a big passion for John, and I fondly remember visits to his house, looking through the 15 albums that made up this wonderful collection."
Victoria Lajer, SGB co-CEO

The prestige factor

A SGB Signature Sale elevates your collection beyond a standard auction lot. Your material becomes the star of its own event, with dedicated catalogue production, targeted marketing, and the gravitas that serious collectors recognise and respect. This focused approach consistently achieves superior results compared to general sales.

The Crown Coin Stanley Gibbons Baldwin's

The Crown Coin - one of the most audacious numismatic creations in history, valued at £16m, sold for an undisclosed fee by SGB Auctionsc

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Ready to showcase your collection?

Interested in a Single Vendor Sale? Visit our seller's information page and learn how you can start the process.

Seller's information

Our bespoke approach

Unlike other auction houses that rush collections to market, we develop a comprehensive approach tailored to your collection's unique characteristics and your personal priorities. Our specialists invest time understanding both the material and your circumstances, creating bespoke plans that may span years if that serves your best interests.

Our tailored approach

Strategic planning

We never rush exceptional collections. Our specialists analyse the items, market conditions, buyer demand, and seasonal factors to determine the best timing for each element of your collection. Some categories benefit from thematic grouping, others achieve better results when presented separately.

Planning for the £500,000 Frank Waley Collection of Hammered and Milled Coins involved a comprehensive assessment of the coins, including how NGC grading might increase vendor returns. The result was a spectacular auction with several graded items performing exceptionally well, in particular the Anne Post-Union Five-Guineas, which sold for £144,000.

Our tailored approach

Avoiding buyer fatigue

When presenting substantial collections, timing becomes crucial. We structure sales to maintain collector interest whilst achieving the best possible results, sometimes spreading material across multiple seasons to ensure each element receives proper attention from the market.

The Academic Collection, offers perhaps the best example of a strategic decision to spread material across multiple years to maximise vendor returns. Commencing in 2023, the collection has seen seven dedicated auctions, with more material still to be offered.

Our tailored approach

Global reach

Your Single Vendor Sale receives comprehensive promotion through our established channels – from traditional print advertising in specialist publications to extensive digital campaigns reaching hundreds of thousands of collectors worldwide.

We also present material at international exhibitions, ensuring global visibility.

Maximising your collection's potential

As both auction house and dealer, we select the most appropriate avenue for each element of your collection – whether through auction, private treaty sales, or retail opportunities. Our commission rates are negotiated based on your collection's scope and value, ensuring our interests align perfectly with yours.

Understanding that many consigners have sophisticated financial requirements, we work within your timeframes to make the most of both market conditions and personal circumstances. Our flexible scheduling accommodates tax planning and estate considerations, because we recognise that timing matters as much as presentation.

Lina Fitzjames Valuation Stanley Gibbons Baldwin's

The Single Vendor Sale process

Pre-consignment

Initial consultation

Our specialists visit you at home to examine your collection in detail whilst discussing your priorities, timeline, and expectations. This thorough assessment forms the foundation of your bespoke auction strategy.

Strategic development

Following initial assessment, we develop a detailed approach, outlining how each element will be presented for maximum impact. This includes timing recommendations, thematic grouping, and marketing strategies tailored specifically to your material.

The Single Vendor Sale process

Post consignment

Collection and research

Once consigned, your collection receives dedicated specialist care. Our experts research provenance, verify authenticity, and craft compelling descriptions that communicate both technical accuracy and emotional appeal to potential buyers.

Marketing campaign

Your Single Vendor Sale receives dedicated promotion across all our channels – from luxury catalogue production to targeted digital campaigns reaching our global collector database.

The Single Vendor Sale process

Post consignment

Auction event

Whether conducted as live auctions with online participation or extended online-only events, your Single Vendor Sale receives the focused attention that exceptional material deserves.

Results and settlement

We'll send you detailed results showing exactly how each lot performed, and you'll receive payment promptly once buyers have settled their accounts.

Ready to discuss your collection?

If you believe your collection merits Single Vendor Sale treatment, we'd welcome the opportunity to discuss its potential. Our initial consultation involves no obligation whilst providing valuable insights into your collection's significance and market potential.

Contact our specialists to arrange a confidential discussion about your collection's Single Vendor Sale possibilities.

Request your free valuation

SIGNATURE SALES

For exceptional collections that deserve exceptional treatment

Looking To Sell Your Collection?

What makes a Signature Sale?

Collections that qualify

Featured collection

The prestige factor

The Crown Coin - one of the most audacious numismatic creations in history, valued at £16m, sold for an undisclosed fee by SGB Auctionsc

Ready to showcase your collection?

Our bespoke approach

Strategic planning

Avoiding buyer fatigue

Global reach

Maximising your collection's potential

Pre-consignment

Initial consultation

Strategic development

Post consignment

Collection and research

Marketing campaign

Post consignment

Auction event

Results and settlement

Ready to discuss your collection?

Signature Sale - The Crown Coin, one of the most audacious numismatic creations in history with a campaign to match.