Ignoring facts again Dad? Take a closer look and note the dots. Nasedkin did not use dots. As I mentioned in the beginning AH with or without dots is difficult due to the fact that there are several alternatives. Is the first dot a dot or not is not absolutely clear but the last one is without any doubts. That is why I dared to suggested Holmström. Let's wait for the new photos.
Here are some new images. The mark is definitely A.H.. The slight bulge on the top of the crossbar on the 'H', appears to be the result of a chipped punch.
I have also included a couple of images of the engraving, which at first glance appears good, but on closer inspection is perhaps not of the first quality.