'BryanJ' - Your front barrel band is the type that would have been on your model 1898 Krag, #188711, when it was first assembled (around March-April 1899).

IIRC - This type of band was usually replaced by the later 'split' band, when model 1896 and model 1898 Krags were refurbished or rebuilt at the Armory. It is unusual to see one on a model 1898 Krag, in my experience. (Interesting).

Your present rear-sight is the 'Dickson' model 1898 sight. It has the 1898 Base and Leaf. It has the correct 1898 'locking-knob' on the right side of the Slide. However, your sight's Slide appears to be a later 1902 Slide, because of the small hole in its left-side, for a spring-loaded pin.

(I am attaching a picture of the left-side of an 1898 Slide, which is plain and without the small hole and spring-loaded pin).

IMHO - It is likely your Krag had a model 1896 sight on it when first assembled.

The model 1898 sight had a very short period of service. Mallory, ("The Krag Rifle Story"), wrote of it being put on model 1898 Krags, manufactured between August, 1899 and March, 1900, when it was discontinued. Poyer assumes the Dickson sight was put on model 1898 rifles in the #217400 to #253000 range.

Suffice it to say, I do not know who put the 1898 sight on your Krag. I do not believe it to be a "Pure" example of the 1898 rear-sight because of its Slide.

Possibly a KCA member with a copy of Joe Farmer's publication can check his conclusions on the 1898 Sight.