1893 Undeliverable Mail: Addressed to: Hans Mayer, District VI, Amerlingstrasse 15, Parterre. A much-travelled message, with two redirection slips.
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| Front of 1st redirection slip. (Loose translation – the writing is difficult): "According to information from the janitor, the party has moved to the Kaserngasse. The tenant is also unknown to the janitor." | Back of 1st redirection slip. "A Johanne Mayer without indication of nationality or character is here unreachable. (signed) Mayer" |

Front of 2nd redirection slip. In pen: "Addressee District VI Kaserngasse without No undeliverable.". In pencil: "Please ask the police."

Front: In pencil: "Pol" (Police)
In purple ink: "Unknown to the police return to sender."
Rear: In pencil: "Herrengasse 17" (address of the Oesterreichisch–Ungarische Bank) – the return address.
| From: | CR - Telegrafen Centrale | July 12 1893 at 7:00 pm |
| Arrival: | 57 - Gumpendorf | 7:20 pm |
| Rerouted: | CR - Telegrafen Centrale sent to 59 with new addr. | No cancel |
| Arrival | 59 - Mittelgasse (closer to Amerlinstrasse) | 9:00 pm |
| Arrival: | CR - Telegrafen Centrale & returned to sender | 9:40 pm |