He is director of the Treasury Department’s Bureau of Engraving and Printing.

他是美国财政部造币和印钞局主任。

Part of it had to do, I think, with the fact that stamps in this period–most of them are designed and printed at the Bureau of Engraving and Printing, which also prints the money.

我认为，部分原因与这一时期的邮票有关——大多数邮票是在雕刻印刷局设计和印刷的，该局也印钞。