Help with yatagans' inscriptions

[TVV]

Here are three photos of inscriptions and a maker's mark on yataghan blades. I received them from a friend in Bulgaria with a plea for translation. I apologize for not having photos of the entire yataghans: I am trying to obtain those shots. However, in light of contributing so many yataghans to this forum, I hope that I may be granted an exception in this case from our gracious translators.

As always, all help in translating these inscriptions and marks is greatly appreciated.

Thank you,
Teodor