Featured Need suggestion on a woodblock printing

Hello, I found this from a local estate sale. Could you tell me if this is original?
I was told typical woodblock print has the seal of inspector in old ages, but i couldn't find on this one.

 

It appears to be an original woodbluck print but not sure how old it is.

 

Don't those have folds? Looks like they were bound.

Debora

 

They are both triptychs, made as three prints, glued edge to edge. Japanese woodblock prints, known as ukiyo-e, are a complicated subject. They were reprinted, recut, and reissued in a variety of ways. It is not possible to assess them from photos. I imagine an expert would need them to be removed from the frame as well. Pertinent stamps and signatures may be hidden under the mat, and you need to see the type of paper they are printed on.

https://risdmuseum.org/exhibitions-events/exhibitions/triptych-format-japanese-woodblock-prints

http://www.ukiyo-e.se/signatur.html

 

These look like 1st editions, guessing last one is Chikanobu, too lazy to google, eating supper! Meiji prints don't have censor seals usually.
Sumo print is a touch older and by one of the Kuni something or others, maybe Kunimasu but just a WAG. The googlers will find it for you

 

BTW, these were not especially popular images at the time so highly doubtful they were reprinted.

 

looks like a European in uniform. from the beard perhaps Spanish or Portuguese ?