Block Rolling Mill by K.H. Schaefer (Blockwalzwerk), Berlin. These mills were used to lay out molden steel during manufacture.

- Image ID: ERHAT6
Block Rolling Mill by K.H. Schaefer (Blockwalzwerk), Berlin. These mills were used to lay out molden steel during manufacture.
Lebrecht Music & Arts / Alamy Stock Photo
Image ID: ERHAT6
Block Rolling Mill by K.H. Schaefer (Blockwalzwerk), Berlin. These mills were used to lay out molden steel during manufacture.