Mystery Needle Case

This is a mystery hussif of sorts.  It has pins, needles, buttons and thread and is probably at least 100 years old.  I would love to know more of its history

At the top of the interior flap is "Kirby Beard & Co" which when I Googled it found that it was a general manufacturing company in England during the 1800s which did indeed make all kinds of sewing supplies...everything from pins and needles to sewing machines.  They also made many other things as well.

The pocket at the bottom has two spools of thread....one black and one white...  The buttons have 4 holes and are also black or white.  The wording on the buttons says "BEST RING EDGE."  Because the whole thing is so sturdy I suspect it may have been for a man....maybe military or explorer...just a guess.

It all rolls up into a tidy package secured by a leather strap.  The leather is in remarkably good shape considering how old it must be.

Has anyone seen anything like it?  I was hoping the unusual buttons might be a clue..