Black and white negative from a French school book, probably used by Dr. Becker in his teaching.

Black and white negative from a French school book, probably used by Dr. Becker in his teaching.

Black and white negative from a French school book, probably used by Dr. Becker in his teaching.

Black and white negative from a French school book, probably used by Dr. Becker in his teaching.

Black and white negative from a French school book, probably used by Dr. Becker in his teaching.

Black and white negative from Witley Stokes, 'The Old-Irish glosses at Wurzburg and Carlsruhe', (Hereford, 1887), done for Dr. Becker.

Black and white negative from Witley Stokes, 'The Old-Irish glosses at Wurzburg and Carlsruhe', (Hereford, 1887), done for Dr. Becker.

Black and white negative from Witley Stokes, 'The Old-Irish glosses at Wurzburg and Carlsruhe', (Hereford, 1887), done for Dr. Becker.

Black and white negative from Witley Stokes, 'The Old-Irish glosses at Wurzburg and Carlsruhe', (Hereford, 1887), done for Dr. Becker.

Black and white negative from Witley Stokes, 'The Old-Irish glosses at Wurzburg and Carlsruhe', (Hereford, 1887), done for Dr. Becker.