Francis Bacon's cipher signatures / Frank Woodward.

Secret Shakespearean seals : revelations of Rosicrucian arcana : discoveries in the Shakespeare plays, sonnets, and works, printed circa 1586-1740, of "Secreti sigilli", concealed author's marks and signs / by Fratres roseæ crucis.

Francis Bacon's cipher signatures / Frank Woodward.

The second cryptographic Shakespeare : a monograph wherein the poems and plays attributed to William Shakespeare are proven to contain the enciphered name of the concealed author, Francis Bacon / by Leary Penn.

No cipher in Shakespeare : being a refutation of the Hon. Ignatius Donnelly's Great cryptogram / by the Rev. A. Nicholson ....

No cipher in Shakespeare : being a refutation of the Hon. Ignatius Donnelly's Great cryptogram / by the Rev. A. Nicholson ....

Francis Bacon's cipher signatures / Frank Woodward.

The cryptographic Shakespeare : a monograph wherein the poems and plays attributed to William Shakespeare are proven to contain the enciphered name of the concealed author, Francis Bacon / by Penn Leary.

Bacon cryptograms in Shake-speare, and other studies, by Isaac Hull Platt.

Report on the poet Shakespeare’s identity submitted to the trustees of the British museum, |b with extracts from the correspondence / John Denham Parsons.

The tragical historie of our late brother Robert, earl of Essex, by the author of Hamlet, Richard III, Othello, As you like it, etc., and of the newly discovered tragedy, Mary queen of Scots. Deciphered from the works of Sir Francis Bacon / by Orville W. Owen, M.D.

The Sha-ke-Bacon cryptogram.

Shakespeare a Rosicrucian : was he a Rosicrucian?

The second cryptographic Shakespeare : a monograph wherein the poems and plays attributed to William Shakespeare are proven to contain the enciphered name of the concealed author, Francis Bacon / by Leary Penn.

Bacon is Shake-speare / by Sir Edwin Durning-Lawrence ; together with a reprint of Bacon's Promus of formularies and elegancies...

Bacon is Shake-speare / by Sir Edwin Durning-Lawrence ; together with a reprint of Bacon's Promus of formularies and elegancies...

Bacon and Shakespeare : an inquiry touching players, playhouses, and play-writers in the days of Elizabeth / by William Henry Smith, esq.. to which is appended an abstract of a ms. respecting Tobie Matthew.

Bacon and Shakespeare : an inquiry touching players, playhouses, and play-writers in the days of Elizabeth / by William Henry Smith, esq.. to which is appended an abstract of a ms. respecting Tobie Matthew.

Bacon and Shakespeare : an inquiry touching players, playhouses, and play-writers in the days of Elizabeth / by William Henry Smith, esq.. to which is appended an abstract of a ms. respecting Tobie Matthew.