Censored mail can be identified by various postmarks, dates, postage stamps and other markings, along with an adhesive seal, usually bearing special ID markings, which were used to reclose the envelope after inspection.
Censored mail can be identified by various postmarks, usually bearing special ID markings. This was along with an adhesive seal. Censored mail can be identified by dates, usually bearing special ID markings. This was along with an adhesive seal. Censored mail can be identified by postage stamps, usually bearing special ID markings. This was along with an adhesive seal. Censored mail can be identified by other markings, usually bearing special ID markings. This was along with an adhesive seal. Special ID markings were used to reclose the envelope after inspection.