Four brass matrices made by electrotyping
This image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseFour brass matrices made by electrotyping, letters H,M
Science Museum Group
© The Board of Trustees of the Science Museum
Four brass matrices made by electrotyping, letters H,M,Y and figure 6
