When I joined my local VFW, they had a dozen or so M1903s (Remingtons, straight stock, barrel sights, machined parts) in the storeroom, had'nt been gone thru or fired in over 20 years. I offered to clean them up. They were all dusty, some surface rust, some stocks had light mold! Barrels dirty, hard to make anything out. But it was all storage dirt, not like someone had taken them out and left them in a barn.
They all cleaned up suprisingly well! Bores had some pitting, but all had strong rifling and were quite shootable. Very little wear. Some were prettier than others, but really not a nickles worth of difference between them. I suspect these Krags are the same. My VFW post was founded in 1948. Thus the 03s. Many of the posts set up after WW1 recieved Krags, some only now selling them off. Most of these were well taken care of until 20 or 30 years ago, when it seems most posts got out of the rifle salute buisness. Since then they've been setting in air conditioned posts, gathering dust.