Straining Spoon

Hey, got this straining spoon and wanted to learn as much as possible about it, hope you can help. Please ignore my ignorance if the picture is upside down
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I don’t recognise this one, but it’s most likely to be silver plate rather than solid silver. The final letter / symbol is, I think, a D. Electroplaters often adopted the convention of putting the initial letter of their town in their trade marks; so S for Sheffield, G for Glasgow, etc. It is possible that this D may be for Dublin, but I’m just speculating.