Nova Scotia Pseudos for "GB" or "GR" ??

[Traintime]

Suspicious Canadian of Uncertain Qualities..reads like a police alert, but I don't know where to add this. The handle is joined to the bowl. Seems to have a right facing head, possibly female. "N.S." rather than EPNS or E.P. marks. An additional mark that might resemble a thistle with cartouche turned on axis. Sifter, strainer, or other pierced bowl:

[Traintime]

More bad photos..don't blame me, the shutter speed sucks:

[Traintime]

More shots in daylight. We can see the handle is attached a bit off center, which would be consistent with potential flaws of hand worked items. The second pseudo (mark IV) is tricky...having that crown-over-ball shape of the center bud of a thistle but without the outer leaves found in real hallmarks. At the same time, it could just be a repetition of the first pseudo which seems to (poorly) copy the George III duty mark (the best comparison to my eye). Could this be old Novia Scotia work?

[samtron76df]

There was a Gustave La Baume working in Halifax, NS in 1838 - listed as a jeweler/silversmith... no mark shown.

I wish there was a better - updated -- book on Canadian Silver other than Langdon's. Does anyone know of another one?

[Traintime]

May have to leave the NySilver question open on this one because of this description (photos loss) of marks: viewtopic.php?f=18&t=3484&hilit=swedish+nickel+silver

At the same time it still seems to fit with some of the Nova Scotia knowns.