The Backside of a Blackwork Embroidered Stomacher

This English stomacher is at the V&A Museum and is from circa 1590-1610. "A stomacher was an essential accessory in women’s fashion in the late 16th and early 17th centuries. It consisted of shaped piece of fabric, usually triangular, which filled in the gap between the fronts of a woman’s open gown. Stomachers were often richly embellished to contrast with the fabrics and decoration of the gown. This stomacher is embroidered in a technique known as blackwork, worked with a single colour of silk, usually black." (V&A Museum)

(Front Side)

(Back Side)

If any thing, I'm just excited to find another historic example showing the backside of the embroidery and how the tail ends of the thread (as seen in the red circle above) are woven into the embroidery (rather than knotting the tail ends).