Can anyone tell me what letters are graved on this?

I see J C B

I think H C B

HCB

and here how they interlock

I agree with HCB and would add that since C is the largest letter, it is probably the surname, so the owner's initials would have been HBC.

Thanks to you all.
The H was difficult until Peter's chart shows it clearly.

The Hudson Bay Company tries to mark everything .

May I throw the cat amongst the pigeons?. I worked for 'The Company of Gentlemen Adventures Trading into Hudsons Bay" circa 55 years ago and it was my observation that HBC did mark most everything (point blankets excepted) H with a B enjoined. HBC thought highly them selves but I doubt they would mark the exterior with logos of this complexity. I believe the initials are HCB. The shape of a relatively large logo should symmetrically lend its self to the circular space upon which to engrave.

We may never know who HCB was in 1909.
However in 2015, I will go with hella cold beer.

lager, stout, porter, kolch, pilsner, alt, brown ale, anchor steam, pale ale......? Enquiring minds need to know

Now we are talking- so many to choose from... Like watch manufacturers...

There are several nice local IPA's, Google Norfolk breweries.

Tonite it is Americas oldest lager- Yuengling !
Cheers

Controversy ensues! My better half says Desmond an I are wrong. The C is much larger therefore it is the surname.
Hotel Bravo Charlie

So it isn't beer at all; it is cola.