First edition title page (viewed as e-copy at HathiTrust, above) displays in three different fonts and sizes, plausibly as the full title (six lines):
THE
MASTER KEY
An Electrical Fairy Tale
founded upon the mysteries of electricity
and the optimism of its devotees. it was
written for boys but others may read it.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1901 |
|
The Master Key: An Electrical Fairy Tale | Bowen-Merrill | Novel | 1|1.1 |
| 1974 |
|
The Master Key: An Electrical Fairy Tale | Hyperion Press | Novel | |
| 1974 |
|
The Master Key: An Electrical Fairy Tale | Hyperion Press | Novel | 1 |
| 1976 |
|
The Master Key: An Electrical Fairy Tale | Dover Publications | Novel | |1 |
| 1984 |
|
A Treasury of Fantasy | Chatham River Press | Omnibus | 345 |
| May 1987 |
|
The Mammoth Book of Classic Fantasy | Robinson | Omnibus | 345 |
| July 1987 | The Mammoth Book of Classic Fantasy | Firecrest | Omnibus | ||
| February 1996 | The Master Key | Project Gutenberg | Novel | ||
| 1997 | The Master Key: An Electrical Fairy Tale | Books of Wonder | Novel | ||
| May 1997 |
|
The Master Key: An Electrical Fairy Tale | Books of Wonder | Novel | |
| July 2000 | The Master Key | Blue Unicorn Editions | Novel | ||
| December 2005 |
|
The Master Key | The Echo Library | Novel | |
| March 2007 |
|
The Master Key | LibriVox | Novel | |
| July 2008 |
|
The Master Key | Tutis Digital Publishing | Novel | |
| August 2008 |
|
The Master Key: An Electrical Fairy Tale | Borgo Press / Wildside Press | Novel | |
| August 2008 |
|
The Master Key: An Electrical Fairy Tale | Borgo Press / Wildside Press | Novel | |
| April 2010 |
|
The Master Key: An Electrical Fairy Tale | Forgotten Books | Novel | |
| July 2011 |
|
The Master Key: An Electrical Fairy Tale | Theophania Publishing | Novel | |
| March 2014 |
|
The Master Key: An Electrical Fairy Tale | Bottom of the Hill Publishing | Novel | |
| April 2014 | The Master Key: An Electrical Fairy Tale | Project Gutenberg | Novel | ||
| October 2024 |
|
The Master Key: An Electrical Fairy Tale | Roy Glashan's Library | Novel |