Effective April 1, 1957, Lake Central Airlines extended Air Mail Route 88 to Detroit from Lima via Toledo, Ohio.

The northbound flight of April 1 out of Lima operated only as far as Toledo where it was cancelled. Philatelic covers held at Toledo for northbound service to Detroit were inadvertently forwarded by Delta Air Lines on April 1.

No official cachets were provided.

Perry Nahl, a former Editor-in-Chief of the American Air Mail Catalogue, prepared the cover.

Effective July 1, 1968, Lake Central Airlines merged with Allegheny Airlines. Accordingly, Air Mail Route 88 was combined with Allegheny's Air Mail Route 97 and the entire system designated as Air Mail Route 97.

A Civil Aeronautics Board order, effective June 11, 1979, authorized the corporate title “Allegheny Airlines” to be changed to “USAir, Inc.” The name change reflected the carrier’s geographic expansion and increased airline status.

In early 1997 USAir changed its name to US Airways and introduced a new corporate identity. 

On February 14, 2013, US Airways Group and AMR Corporation announced that the two companies would merge to form the largest airline in the world. The combined airline carries the American Airlines name.