Military Hat identification

Military Hat identification

I have come across a Civil War style / Spanish American War hat.  Cannot
identify.  Was wondering if you could help identify it.  I came across
your name on a google search.  I have spent hours "googling" military hats
and have yet to come across a picture for comparison.

Hat:  Black w/front black cord stretched across and just above short black
bill.  Manufactured by Horstmann / Philadelphia.

      Frilly, meshy Gold decoration attached below black bill & chord,
stretched across entire front of cap.

        Chord is attached to cap with insignia buttons: Latin: "In Hoc Signa
Vinces" / Cross through a Crown (Was thinking it was a medical hat                  based on my research, but not sure)

      The bill is short, black, and embossed

I showed the hat to a fellow teacher who does Civil War Re-enactments.  He
thought it might be Spanish American War.

Was just curious if you could steer me in the right direction?

Thanks.  I am a high school English teacher in Minnesota.

Tim J Brennan
Austin MN