1969 Cast Iron Exhaust manifold set -working heat riser!

I have a 318 OEM exhaust manifold set 1#2951916 dated June 16, 1969 for sale.
This is a very nice set with no cracks that I could see before I painted them. The really nice feature is the fully functional/non-rusted "heat riser."
$75 plus shpg.; in San Diego, 92116 zip code.

Thank you,
Gary