I believe these are mamasan and papasan figurines. I am a Japan brat (child of armed services personnel stationed in Japan.) We were there in the late 60's early 70's and i remember these being in a lot of quarters on base, they seamed to be one of the popular things to have. You might want to go to chofu.org (the high school website for the base we lived on) and contact some of the people there. They were older than i when in Japan and could probably give you more information on them. As far as value goes I have no idea but they are very cool.