Indoors or Outdoors?

8°C  -  12 mph ENE Wind Speed  -  20 mph Gusts  -  Overcast.  Did some clearing up in the garden but it was too cold to hang around.  The urn in my main blip has lived outdoors since I inherited it about ten years ago  -  I am wondering about cleaning it up so it can live indoors!  Anyway it’s indoors now and awaiting the time when I can find the right cleansing material.  I think the urn is made of pewter.