Siamnaliga

กระดานสนทนา : Forums => กระดานคุยกันเรื่องนาฬิกา => Topic started by: eam69 on November 04, 2018, 08:47:58 pm

Title: Common Control and Convention Marks
Post by: eam69 on November 04, 2018, 08:47:58 pm




https://www.assayofficelondon.co.uk/hallmarking/convention-other-legal-marks (https://www.assayofficelondon.co.uk/hallmarking/convention-other-legal-marks)


(https://theassayoffice.com/wx-uploads/img/large/archive/img/anatomy-ring-2014-p.jpg)


https://theassayoffice.com/help-with-hallmarks/anatomy-of-a-hallmark (https://theassayoffice.com/help-with-hallmarks/anatomy-of-a-hallmark)