Autographs of Conan Doyle

Sir Arthur Ignatius Conan Doyle (22 May 1859 – 7 July 1930) was a British writer and physician. He is best known for his four novels and fifty-six short stories about the fictional consulting detective Sherlock Holmes and his assistant Dr. Watson, which are milestones in crime fiction, and for his first work featuring Professor Challenger, The Lost World (1912), which gave its name to a subgenre of speculative fiction. He was a prolific writer who produced over 200 stories and articles, four volumes of poetry, and a number of works for the stage. He was knighted by King Edward VII in the 1902 Coronation Honours.
Born in Edinburgh, Doyle published his earliest stories whilst studying medicine at the University of Edinburgh Medical School, and he served as a doctor and surgeon on two sea voyages before establishing an unsuccessful medical practice in Portsmouth. His time at sea inspired the short story "J. Habakuk Jephson's Statement" (1884), which popularised the mystery of the Mary Celeste. His first Sherlock Holmes work, the novel A Study in Scarlet, was published in 1887, and the short story "A Scandal in Bohemia" (1891) was the first of twenty-four monthly Holmes stories published in The Strand Magazine, for which Doyle became one of the most famous and well-paid authors of his time. His ambivalence towards the character led to Holmes's being killed off in "The Final Problem" (1893); but public outcry resulted in his return in The Hound of the Baskervilles (1901), and Doyle continued to write stories featuring him up to 1927. He was also known for his humorous stories about the Napoleonic soldier Brigadier Gerard.
Doyle was involved in political activism throughout his life and twice stood unsuccessfully for Parliament. He wrote in support of compulsory vaccination, the British causes in the Second Boer War and First World War and the reform of the Congo Free State. He was a fervent advocate of justice who personally investigated two closed cases, both resulting in the exoneration of the accused men and setting precedent which partially led to the establishment of the Court of Criminal Appeal in 1907. He was noted for his skill as an architect and was involved in several sports as a player and judge.
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Traded items with a signature of Conan Doyle

The most expensive item with a signature of Conan Doyle (1903 Author's Edition of The Works of Arthur Conan DOYLE SIGNED Ltd Ed 12 Vols) was sold in November 2025 for £5,000.00 while the cheapest item (SIGNED The Mile End Murder The Case Conan Doyle Couldn't Solve -SINCLAIR McKAY) found a new owner for £0.99 in October 2024. The month with the most items sold (3) was May 2014 with an average selling price of £380.00 for an autographed item of Conan Doyle. Sold items reached their highest average selling price in November 2024 with £4,000.00 and the month that saw the lowest prices with £4.99 was May 2015. In average, an autographed item from Conan Doyle is worth £346.00.

Most recently, these items with a signature of Conan Doyle were sold on eBay - click here for more items.

Picture	Item Title	Price	Store
	ARTHUR CONAN DOYLE HANDWRITTEN SIGNED LETTER SHERLOCK HOLMES ANTIQUE ORIGINAL	£881.00
	ARTHUR CONAN DOYLE HANDWRITTEN SIGNED LETTER SHERLOCK HOLMES ANTIQUE ORIGINAL	£881.00
	Arthur Conan Doyle SHERLOCK HOLMES autograph letter signed & mounted	£999.62
	Arthur Conan Doyle SHERLOCK HOLMES autograph letter signed & mounted	£999.62
	Rare Original Signed Photograph ARTHUR CONAN DOYLE The Case of Oscar Slater 1928	£4,000.00
	Signed Card, Sir Arthur Conan Doyle (Autograph)	£1,002.90
	Signed Card, Sir Arthur Conan Doyle (Autograph)	£1,002.90
	Signed Letter, Sir Arthur Conan Doyle (Autograph)	£500.00
	Signed Letter, Sir Arthur Conan Doyle (Autograph)	£500.00
	Sir Arthur Conan Doyle Autograph - Sherlock Holmes Author	£270.00
	Sir Arthur Conan Doyle Autograph - Sherlock Holmes Author	£270.00
	Sir Arthur Conan Doyle Autograph - Sherlock Holmes Author	£419.12
	Sir Arthur Conan Doyle Autograph - Sherlock Holmes Author	£419.12
	Sir Arthur Conan Doyle Signed Letter On The Irish - Sherlock Holmes Author	£775.01
	Sir Arthur Conan Doyle Signed Letter On The Irish - Sherlock Holmes Author	£775.01