Identifying Vintage Pins: What Does 'LlD7' Mean?

Question
I have a pin(bow shape) with LlD7 stamped on the back and am unable to find anything on that.  Can you help.

Answer
Hello Jimmie and thank you for your inquiry. I believe that number is the design number. I haven't been able to find any type of manufacturer with anything similar and the letter combined with number is more apt to be design.  Hope this helps !

Sally at
jarrettsjade.com