|
After the engraver has completed his task, the die ishardened and burnished. When completed, an impressionis taken to determine if the design is perfect. Such im-pressions are called die proofs. As often as not, dieproofs are made in various colors to determine just howthe design will look in different color schemes. Such areknown in philately as "trial color die proofs." When the die proof has been accepted, the die isplaced in a "transfer press." Above the die is suspended,in powerful trunions, a roller of soft steel. When every-thing is in position the roller of steel is lowered andbrought to bear under great pressure against the hard-ened die. The die, which is on a movable bed, is nowpassed under the roll. The great pressure applied causesan exact duplicate of the design on the die to be takenup on the softer steel of the roller. The process is re- |
|||
|
