3 swords. Reproductions or authentic?

These 3 swords have been in my family a long time, but I know nothing about them or their type. The third one, which is the longest, is the only one with a mark. It is stamped 84 in two places on the handle. Would sure appreciate any evaluations or opinions. They have not been cleaned. The 1st sword is 30" long. 2nd is 29". 3rd is 37". Thanks. Note: Unfortunately, I can only post 4 photos. I'll add close-ups of the handles in the following post. See title: "3 swords. Reproductions or authentic, continued."