Sterling Necklace Possibly Native Maker's Mark?

I bought this necklace at a thrift store and cannot find who the sterling jewelry maker is. I thought it might be a PF but can't find a matching mark. Any ideas? I was thinking native but it could just be the look as it is equestrian. Since I cannot resize the photo of the whole necklace photo, it is an equestrian horse bit in sterling. I only have this one photo, because I cannot find the image resizer I used to use that was free. All I tried today did not finish or then said it was just a free for the trial number and give them my credit card...naught! Where is a good one please??? Thank you.

 

If you use Windows, you can easily resize photos with Paint.



And, is this a picto mark, or just a scratched bit?

 

If using your phone, just email the photo to yourself, size Medium. Save and upload the Saved file. I use an old bone simple piece of of editing software called Irfanview on my PC.

 

I think it is a scratched area but I will look again with my loop tomorrow. Thank you. I don't have windows, but thanks. I will try sending it by email. I have apple. Thank you.

 

A photo of the front of the piece could help.