VTG SG England Silver Plated Large Serving Spoon

An old serving spoon in silver plate by Kirk's LTD., which according to silver sites, used hallmark (photo 3) SG (Silver Guild) England, as shown in last photo. In an old Kirk & Matz (K&M) box, stock #4910, so companies must have merged (identical spoon on another site is in a Silver Guild box w/same stock number 4910). A substantial spoon, clocking in at 13.5" long (photo 4). It has been polished, serving side shows visible patina, rear is great. Comes exactly as shown w/box (so-so) & felt.