Stamped envelopes for other cities. This issue of special envelopes for city mail was produced by the Expedition for the Preparation of State Papers (EZBG) on the paper and in the format used by the EZBG for manufacturing nationwide postal envelopes. All envelope flaps are rounded, and the top flap of the envelopes is rounded and gummed.
The mailing of out-of-town letters in envelopes of this issue was not permitted, even with an additional payment up to the applicable rate.