Leitz

2

C W Dixey & Son

1

Domilens

1

McKechnie & Jack Ltd

1

Nikon

1

Whitelaw

1

Wm Watson & Sons

1

Zeiss

1

Glass

10

Plastic

3

Brass

2

Metal

2

Wood

2

Cardboard

1

Cotton

1

Steel, Wood

1

Lens

10

Lens, microscope

3

Lens, Ophthalmic

3

Lens holder (?)

1

Lens, bifocal

1