Welcome to the Forum Boshuter.
I hope you don‘t feel offended, but unfortunately your helmet is not in a very good condition. Please take a closer look at it again:
- The lacquer is cracked
- The heraldic eagle is missing the cross on the orb
- The leather of the chinscales is heavily torn and worn on the sides. Some scales seems to be loose
- The fabric of the linker is missing and the sweatband is torn
- The nuts and washers of the spikebase seems to be not original
I certainly don't want to talk down on your helmet, it still has some value. But there are many helmets that are really in „very good“ and also in „mint“ condition, even after more than 100 years. For this reason, I would describe the helmet as well as possible when selling, but leave the condition assessment to the prospective buyer. So you don’t risk to get problems with a buyer later. At the prices you must expect that buyers are critical of the quality.