Yes, it is a precancel, but precancels are generally beyond the scope of the Scott catalog.
This is listed as local type "L-10 E" in "The Precancel Stamp Society Town and Type Catalog of the United States and Territories", with a value of 75 cents on a basic stamp. Here is the same device on some of the regular parcel post stamps:
Posted 04/04/2023 4:13 pm
