The second mark is, I believe, a representation of a thistle.
As far as the 'V' is concerned, I've noted this letter on a few occasions, when seen, it has been accompanied with marks that the do not normally fit with the with the maker. It's just a very vague theory of mine that this letter may have been struck when the spoon was sold in a location where the maker was not a member of the local guild and thus would not have been allowed to work in that town, ie, it was retailed by another.
Here is an example of the 'V' mark with marks that do not fit with the maker:
IK - V - Double headed eagle - Tree with bauble
A teaspoon 5" (14cm) in length. Oar pattern with shoulders.
Likely to have been made by John Keith, but perhaps sold at Perth. Perhaps John Keith had a customer at Perth, or another scenario could be that a retailer was selling a secondhand item. I've nothing to back this up, it's just speculation on my part and offered only as a vague possibility.