Thanks for reaching out Annette, I am so glad you found us!
The smaller stamps on the individual links that you can’t read are likely "part-hallmarks" or repetition marks. In British and European jewelry hallmarking, it is very common for every single link to also have a smaller, abbreviated purity stamp (like a miniature "9" or "375") to guarantee that the entire bracelet—and not just the padlock—is made of 375 gold.
The numbers 375. is the millesimal fineness. It means the metal is 37.5% pure gold, and the remaining 62.5% is made up of other metals (like silver, copper, or zinc) added for strength.
The Crown 👑 is the traditional standard mark for gold in the UK, confirming the purity of the metal.
