WWII "Don't Scrap It" poster - image

[12L14]

is the munition in the photo with her a bomb, or a mortar round? I'm not familiar enough with the various types at the "small enough to hold in your hand" size range.

Just guessing it is 3" mortar shell of British/Australian/Canadian origin.

There are three distinctive features:

-blunt shaped fuse with a straight knurling(No. 152?)

-wide, single driving band

-three double fins with two holes in each half(some versions - not all - had stamped those reinforcing ribs), rounded on both ends.

One without stamped ribs:



ps. sorry for poor english
pps. it should be fins or vanes?