Help dating this razor

Hi!!
Can you help date this razor?
Any info appreciated, thanks!

"Straight razor made by MAC NACTAN & HARCRAFT. 13/16 hollow ground.
The scales have an american eagle with a stars and stripes shield, there are 15 stars,ascroll reads THE HOLLOW GROUND RAZOR, ebossed"

Just going by the way it looks , my estimate would be 1860-1890 .