Thanks, i cant figure out the F.N, looks like EN to me from the beginning.
I got this piece from Malaysia, which i am currently am. Thanks so much for the help.
Page 151 of The Compendium of Chester Gold & Silver marks 1570-1962 by Ridgway & Priestley shows Narborough was a whip mount maker; presumably his activities also included silver mounts for walking sticks.
The Birmingham mark of 1898 reproduced in the Forum British Hallmarks section is a worn example and indicates that the pellet (dot) between the two initials could appear to be the bottom right serif of a letter E instead of a letter F as Oel and Pat suggest but not knowing whether Narborough registered a similar Birmingham mark before 1898 must leave the attribution open to conjecture.
On the image of the mark pictured here there seems to be the ghost of something in front of the letter E or F. Is this just a trick of the light or can any more be made of it?
The image does appear to have something in front of what is now more clearly a letter F but perhaps not another letter which originally formed part of the maker's mark. A trawl through all maker's marks in my lists looking for a three letter mark with FN as the second two has produced no result and on balance I would provisionally attribute the stick mount to F Narborough hoping for future confirmation that by 1894-5 he had registered a Birmingham mark like this.