The silver marks looks Danish.
Two towers means: Silver plated.
Silver maker mark M&TB: Madsen & T. Baagøes Eftf., Copenhagen. This mark was used from 1958 to 1973 (and maybe earlier).
I don't remember what the PP mark means.
The spoon looks very new, and not period. Some flatware patterns are still made, so you can't date it from that.
I don't know about the engravings, but I don't like it.
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