[stewart andrew scott]

I have recently bought some medals with which came this badge. Medals are supposedly(!) for someone in S&T Corps WW1 (with pre-WW1 service too). I have found that this is a S&T Corps badge, but would it be for an officer? Has a bronzed finish with two lugs on the rear with a retaining pin. Approx 4.8cm tall by 3.7cm wide. The badge came with a 1914/15 Star named to LIEUT A. WILLIAMS S & T CORPS and a BWM & VM contrived to be for the same officer but there was another initial on both prior to the 'A' which has been made illegible by use of a small pin punch by the look of it. All of this has made me query the badge. Any thoughts/comments most welcome. Attached image not very good I'm afraid. Thank you. Stewart