Mord per Rohrpost
Pneumatic Tube, Rohrpost, Buizenpost
Pneumatic Tube Calendar
30 June 1859 (162 years ago)
The London Pneumatic Despatch Company was formed
30 June 1918 (103 years ago)
Pneumatic Tube Mail Boston USA temporarily discontinued
30 June 1918 (103 years ago)
Pneumatic Tube Mail Philadelphia USA discontinued