Looks like a specimen sheet. Anonymous?
What does "Pottery Barn #7" mean in this context?

Is this an embroidery "font?"

Typefaces used for specific machines -- for car plates and embroidery machines and so on -- usually are designed for those machines, and therefore have no equivalent in (digital) type. They exist outside the realm of traditional type.

Where can I buy this font? I have a customer that brought in a Family Tree Blanket and the names were embroidered in this font. They would like for us to add names to the blanket, but I don't know where to get the font.

Did you ever find this font? I am in need of it as well!