It's not possible to post a picture of the entire gun at the moment, unfortunately. But the welding is very smooth round the mag housing and it is quite possible that there was an additional prefix letter to the serial number. I will have another look with a magnifier to see if there may have been a "S" at the beginning of the serial. The gun did come with an Indian 19 round converted mag but that doesn't mean to say the gun is ex Indian. The gun was in quite a mucky and rusty state when I got it and took quite a bit of careful cleaning to get it presentable. Thanks for the info chaps.