The Shell and Flame (a.k.a. Flaming Bomb) has been used by European armies for several centuries before adoption by the U.S. Army. In fact, it is still used by many countries in Western Europe, i.e. the Grenadier Guards in Britain. The insignia represents not a bomb, but an iron hand grenade with a powder charge and a fuse which had to be lit before throwing.
Here you get 4 x 4" high stencils, complete with the US lettering, these are made in the multi use material
This product will be made within a couple of days of order and shipped in an envelope or card postal tube, direct to your registered postal address.
We will use your choice of either Royal Mail 1st class, Royal Mail Tracked 48 if in the UK or if abroad Royal Mail Standard International Shipping or International Tracked, you do also have the option for faster delivery with DHL, more expensive for small items, but fast and reliable.
Meanwhile you should get a digital download of the instructions on how to use the stencils in an auto generated email, this is how to use them NOT the stencils, again sent to your registered email address.
Please note for now eBay are blocking this Auto-email so you will get a error when downloading. If needed, I can send separately to you, just ask.