Post by rod222 on Nov 1, 2023 13:29:56 GMT
Siderographer : The technician who produces printing plates by coordinating the individual subjects
and transferring many copies of the design to the (Unhardened) printing plate.
Siderographer Initials : Initials of the BEP employees who created the plate in the lower left corner of the plate
in effect from 1906-1928
Example : Scott 537 3c Victory ( Initials J T F SS L )
Siderography : Process of creating an engraved plate, from a transfer roll.
The Transfer roller.
(The "Rocking in" of the roller, into the unhardened steel printing plates
creates (sometimes) a RE-ENTRY" when the siderographer "rocks in" a deeper image, on the plate, and misses, (just slightly) the original position.
and transferring many copies of the design to the (Unhardened) printing plate.
Siderographer Initials : Initials of the BEP employees who created the plate in the lower left corner of the plate
in effect from 1906-1928
Example : Scott 537 3c Victory ( Initials J T F SS L )
Siderography : Process of creating an engraved plate, from a transfer roll.
The Transfer roller.
(The "Rocking in" of the roller, into the unhardened steel printing plates
creates (sometimes) a RE-ENTRY" when the siderographer "rocks in" a deeper image, on the plate, and misses, (just slightly) the original position.
