Two small glass-plate x-ray negatives;the first to be made in Sir William Crookes laboratory

Two Whitworth surface plates.

Autochrome of flowers in a greenhouse, c 1908.

Autochrome of flowers, c 1908.

Autochrome of roses in a silver vase on a table, c 1910.

Autochrome of flower arrangement, c 1910.

Autochrome of flowers in a vase with fruit, c 1908.

Autochrome of pink roses in a silver vase in a greenhouse, c 1910.

Autochrome of flowers on a book, c 1908.

Piece of steel showing a friction stir weld join, 2000.

Piece of steel showing a friction stir weld join, 2000.

Autochrome of two red Chinese vases with flowers and a book, c 1910.