Answer:
Things here are usually tagged with red stickers.
I am black within and red without With four corners round about.
You can catch me but cannot throw me.
I have a gown but I'm not a priest; I have a crown but I'm not a king.
Six letters do my name compound; among the aged oft I'm found; The shepherd also by the brook hears me when Leaning on his crook; but in the middle me divide and take the half on either side each backward read a liquor tell ev'ry gay toper knows it well.
When is it bad luck to see a black cat?