ANTIQUE VICTORIAN ORNATE METAL HARDWARE PARTS HANGING OIL LAMP VTG CANOPY
A local history museum decided to sell some of their antique, and this group of items came from the local auction. 
There are 6 pieces in this group; two of the pieces are ornate with points around the top and a diameter of approximately 6 1/2 - 7 inches with one not soldered together. The one that is not soldered together also has 3 metal lips meant to be attached to something else. 
Three pieces are all the same, I am not sure they are canopies or shade holders; each one is round with a diameter of almost 5 inches around the bottom, 1 1/4 inches tall and an upper opening of about 1 inch. 
The last item measures about 4 1/2 inches tall, about 4 inches in diameter on the bottom, and about 1 inch at the top.