The collection and study of stamps, postmarks, and related materials collecting.

集邮对，邮戳和有关的材料的收集和研究；收集。

The collection and of postage stamps, postmarks, and related materials stamp collecting.

集邮对邮票，邮戳和有关的的收集和；邮票收集。

The collection and study of postage stamps, postmarks, and related materials; stamp collecting.

集邮对，邮戳和有关的材料的收集和研究；收集。

Used or unused postage or revenue stamps, stamp-postmarks, first-day covers, postal stationery (stamped paper), and the like, other than those of heading No. 49.07.

使用过或未使用过的邮票、印花税票、邮戳印记、首日封、邮政信笺(印有邮票的纸品)及类似品，但税目49.07的货品除外。