You did not mention caliber on the 25. Is it in .45 Colt and numbered THP-1 to 350 on the butt with the lanyard and smooth magnas?
Value on it would be easily north of 1300 NIB. The commemoratives do have their own collector following.
Would need the serial range on the on the 29-2. Generally, the S prefix 4 screw guns with diamond targets go for more than the three screw N prefix guns with the presentation target grips.
Without photos, 'almost mint, unfired' is confusing to me. I would not want to place a value on a gun that has unknown issues without seeing it.