Hoping this post can be turned into a sticky and an online reference. I am posting pics of my Japanese ordnance and I hope others will share whatever they have that isn't already posted.
Type97 Type 99 and Type 99 last ditch grenades
Type 4 Ceramic grenades. Early black/plum glazed, Mid production Tan Glazed, Very late white unglazed (Late, White glazed not pictured)