Mail-Bag-Delivering Apparatus. (open access)

Mail-Bag-Delivering Apparatus.

Patent for "a device for effecting the receipt of bags and the like from and the delivery thereof to railway trains, cars, etc., while the latter are in motion" (lines 11-14), including instructions and illustrations.
Date: May 21, 1918
Creator: Kost, Joseph L.
System: The Portal to Texas History