verb (used with object), fer·ro·typed, fer·ro·typ·ing.
Examples from the Web for ferrotype
I tried putting in a large number of these tubes, all in quantity, on the bottom of a ferrotype plate, but with no advantage.
I put one on a piece of ferrotype plate, and that gave really the best result I ever got.
Aristo prints can be mounted direct from the ferrotype plate or the ground-glass to which they have been squeegeed to dry.
More often a photograph is taken on a ferrotype plate and the outlines scratched into the plate.What Philately Teaches|John N. Luff
Now the ferrotype plate must be exactly free of the end of the core and that is all.How to Make Electrical Machines|R. A. R. Bennett