Correct site adjustment tool for 1917 Artillery?

[thegundude]

Thanks again, Albert. What you say about Germans is too true. And it's a good thing. That's the mentality that gave us the Luger, after all...

I'm going to give up hope on finding a real adjustment tool for now. Even if the cost wasn't a factor the probability of a boost is too high. I hate giving my money to thieves...