Detach Sighting Assembly:
The sighting mechanism was removed in advance of removing the barrel.
Below: An attachment to the carriage had a release pin attached to a chain. This was very tightly held by corrosion. As in all loosening of corroded joins during this restoration, breaking free of the corrosion was effected by repeated heatings with an acetylene torch to a red glow followed immediately by chilling with cold water and application of a penetrant.
