USE AS A BIRDHOUSE, VERY UNIQUE, It would LAST FOREVER!
this is an unmachined foundry aluminum casting, very unique,
and you could join 2 together, or mount the half on a surface, wall, etc.
specs 8" wide. 5 3/8" high,, 2 3/8" is the zenith of the arc weight 1# 13 oz
Reminds me of an Ancient Greek or Roman column top;, Doric