Richmond
2nd image reading clockwise - Is this the same tank?

ootsuka02
I think SR Ro-Go and SR II are different vehicles.

Richmond
Should we then group them under a single topic (what is the best name to use?) or give them separate topics?

en.wikipedia.org/wiki/Type_2_Ka-Mi
en.wikipedia.org/wik..rmy#Amphibious_tanks
globalsecurity.org/m..world/japan/sr-1.htm
tankarchives.ca/2017/02/sr-tanks.html
globalsecurity.org/m..world/japan/sr-2.htm

ootsuka02
Separate topics, of course.

Villiers de Vos
This will be interesting to follow.

Tom B.
Interesting to see that there´s even a kit of these rather obscure Japanese amphibious tanks... definetly keeping an eye on this