Salaams all ~ I think the stamp is Omani though I have never seen one before. Whilst it doesnt look like the Afghan mark it may be a stamp from that region however I suspect Omani Military as a possible solution.
Here below is the Omani emblem. It occurs on the National Flag and was in fact the Oman Army capbadge. Is the sword stamp derived from this flag insignia? ~ I have to say that although I have never seen this stamp before it may be a mark used on Zanzibari or military swords of that period (I havent seen any of them either! and I have never been to Zanzibar !!)
On blades on this style~ though there is no concrete rule~ I thought the blades were derived usually from Shashqa for this type of Nimcha sword and Karabela swords?
What is the true relationship between this sword and the Moroccan (Algerian and North African) and which one came first?
Regards,
Ibrahiim al Balooshi.