Memorial Mystery

The two pictures below were taken inside a church of a wall memorial plaque, on the bottom right of the plaque you can see a decretive rose but on the left the rose is missing yet the next picture shows a bright round object on the left hand side of the plaque. Its hard to say what has caused this to happen, it is possible that there was originally a rose but it has become detached at some time and has left a residue of an adhesive which could have reacted to the camera flash, whatever the case may be, it looks strange.

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