Chekov standing in front of a Grumman LLV
A Grumman LLV was a type of truck that existed during the 20th century.
They were driven by mail carriers that worked for the United States Postal Service.
In 1986, when Nyota Uhura and Pavel Chekov were on the streets of San Francisco asking for directions to the Alameda Naval Base, a Grumman LLV drove by. (Star Trek IV: The Voyage Home)
In 2024, a Grumman LLV was driving down the street where the H. Salt Fish & Chips was located. (PIC: "Assimilation")