My opinion is that the chest emblem is nothing more that a paper sticker. Dustin Crops Boy used one of my MoM pics to create a printable graphic of the emblem. Here is a scaled down version of the real emblem (left) and DCB's graphic (right).
Here is a link to the full sized graphic that DCB made:
Here is a link to DCB's full sized graphic after I weathered it a bit:
Feel free to use these for your armor if you would like.