The script is Jawi which is Arabic script used in Malaysia
The word is Kelantan - a state in northern Malaysia which has a tradition of silverwork
There have been about a dozen posts in the Middle East forum over the past two years which ask about this word but I was focussed on Arabic and ended up quite perplexed
It was Trev's observation which caused me to switch focus. Tks Trev. Mystery solved - or at least the part about the origin.