Epiphone Hummingbird - SW factory code

[Newb112]

Hello - first time posting. I am trying to do some research on an Epiphone Hummingbird Acoustic with a serial number of SW06081511. 

I can’t seem to find any info on the SW factory code. I also noticed that the serial isn’t on the headstock and the logo looks a little...odd (though admittedly, maybe I’m just not familiar enough with Epiphones). 

Does anyone know if SW matches an actual factory? In the end, the way the guitar sounds and feels matters most but I’d still like to know what exactly it is I might be purchasing. 
 

Edited December 31, 2020 by Newb112
Added pics