Head's thumb has been drawn on in ink, but there are also pen markings added onto the photograph labelling different parts of the thumb in red ink with lettering.

A grid has been drawn on Head's hand in ink, with dots arranged within the grid to show the arrangement of nerve endings beneath the skin.

Head's arm has been drawn on with ink markings to show the location of nerves beneath the skin, and the words 'Line of change' written twice following the wavy lines that show the area under investigation.

A grid has been drawn in ink on Head's hand to show the location of nerve endings beneath the skin, with dots arranged within the grid to show their position.

The ink markings on the skin show the location of nerve endings throughout the area.

A grid pattern has been drawn on Head's hand in ink, with dots inside the grid.

There are ink markings on Head's skin showing the area of investigation and the location of nerve endings.

Head's arm and hand have been drawn on with ink to mark location of nerve endings beneath the skin.

There are various ink markings drawn on Head's arm and hand to show the location of nerves beneath the skin, and a grid with dots inside.

There are ink markings on the photograph in red and blue ink. Beneath the photograph, on the card mount, are written the words: 'Red= loss of light touch; Blue= line of change to Prick'.

A grid patterm has been drawn on Head's hand in ink with dots arranged withink it to show the location of nerves beneath the skin.

Head's thumb has been drawn on in ink, but there are also pen markings added onto the photograph labelling different parts of the thumb in red ink with lettering.

There are ink markings on the photograph in red and blue ink. Beneath the photograph, on the card mount, are written the words: 'Red= loss of light touch; Blue= line of change to Prick'.

There are ink markings drawn on the skin of Head's arm and thumb to indicate the location of nerve endings.

Head's arm and hand have been drawn on with ink to show location of nerve endings beneath the skin.

There are ink markings on the photograph. Beneath the photograph, on the card mount, are written the words: 'Red= loss of light touch; Blue= line of change to Prick'. However, there are no red markings on the actual photograph, only blue.

Head's arm has been drawn on with ink to show the location of the different nerves beneath the skin.

Head's arm has been drawn on with ink to show the location of the different nerves beneath the skin, and the words 'line of' can also be made out (the third word, which would be 'change', is out of sight).

A grid has been drawn on Head's hand in ink, with dots arranged within it to show the location of nerve endings beneath the skin.

Head's thumb has been drawn on with ink to show the location of nerve endings beneath the skin.

Head's hand and arm have been drawn on with ink to show the location of nerve endings beneath the skin.

Head's arm has been drawn on with ink, showing the location of nerves beneeath the skin. The words 'line of change' have also been written on the arm next to the curving dotted line which delineates the area of investigation.

Head's arm has been drawn on with ink markings, and with the words 'Line of Change'. There is a lable pointing to a place on the hand with the words 'The only Hot Spot'. Underneath the photograph is written a note explaining that dots on the hand are showing 'cold spots'.

There are ink markings drawn on the skin of the arm to show the location of nerves and to indicate the area under investigation.

There are ink markings printed on the surface of the photograph with various measurements and indicating certain areas on the skin. There are various pencil notes written on the back of the photograph, e.g. 'Preserve texture of skin & etch out brush work covering figures etc.', also the identifier '65656'. Possible date written in pencil on the back: '27-5-03'.