Holland before it became H&H ?
I looked in my Stöckel. No less that 20 "Holland"s!
And, of course, H & H, which was founded in 1876 (so it can't be H&H) by Harris John Holland (mentioned 1834-76) and his nephew Henry William Holland.
Even after eliminating those in Ireland and Canada, there are still a good dozen possible Hollands!
But it's certainly British and not Dutch. The relevant Dutch company in the East was the "Vereenigde Oostindische Compagnie", and their guns are typically marked with the letters VOC or VOIC in a heart-shaped outline.