R. F. Fenno & Co.

R. F. Fenno & Co. was an American publishing book company based in New York, founded in 1885 by Robert F. Fenno. By the turn of the century the firm was in financial trouble and between 1903 and 1905 was managed by a committee of its creditors. Robert F. Fenno retired from the firm in 1929. It was continued by his associates under the name of Diehl, Landau and Pettit.
Known addresses :
- 1885-1896 : 112 Fifth Avenue
- 1898-1903 : 9 & 11 East 16th Street
- 1906-1912 : 18 East 17th Street
Between 1896 and 1906, the company published at least 6 novels and 16 short stories written by Arthur Conan Doyle.
Conan Doyle published by R. F. Fenno
1896
Lenox series (25 cents)
- The White Company
- No.22 : The Mystery of Cloomber
- My Friend the Murderer
- Micah Clarke
- The Firm of Girdlestone
- The Captain of the Pole Star
- Strange Secrets
Fenno's Illustrated series / Fenno's Select series (50 cents)
- The Firm of Girdlestone (10 illustrations by Harry C. Edwards)
- Strange Secrets
Summer series (25 cents)
- The Captain of the Pole Star
- The Firm of Girdlestone
- Micah Clarke
- My Friend the Murderer
- The Mystery of Cloomber
- The White Company
- Strange Secrets
Victor series (25 cents)
1897-1898
Columbia series (25 cents)
- No. 5 : The White Company
- Micah Clarke
- The Firm of Girdlestone
- The Captain of the Pole Star
- The Mystery of Cloomber
- Strange Secrets
1899

The Wedgwood series (25 cents, boxed set $3) / Crown Derby series (set $3.25)
- No. 38 : The White Company
- No. 39 : Micah Clarke
- No. 40 : The Firm of Girdlestone
- No. 41 : The Captain of the Pole Star
- No. 42 : The Mystery of Cloomber
- No. 43 : Strange Secrets
1903
Special Limited Edition
1906
Covers
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The Mystery of Cloomber Lenox series No. 22 (1896-1898)
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Strange Secrets (1895~1899)
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The Firm of Girdlestone Illustrated series (1896)
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Strange Secrets Wedgwood series (1899)
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The White Company Wedgwood series (1899)
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The Mystery of Cloomber Wedgwood series (1899)