A-Jay,
Not really a goofy question at all.
When standing at the left side of the car by the hood, looking forward at the horn, you would be able to read the name Sparton. Sparton stamped those tags with the month and year, such as 3 for March, the the full year, 1930, etc.
This is a photo of a tag from a new old stock Sparton horn.
Dave Lopes