1.88/1.60 J Heads Bare-CO

Will probably never use these so thought I'd offer them here before CL or Ebay.
They are a J head, but have no J cast into them. They do share the same casting number, but what's weird is, they are missing the 1 in "3418915"
Both heads share the casting number "348915-A" Weird right? Not sure if these were one of the earliest sets or someone just had a bad day at the foundry,lol. See pics.
Anyways, they have the 1.88"/1.60" valves and have never been ported, gasket matched, etc. These heads have had bronze/brass guide liners installed previously. I'm sure they've been surfaced as well, not not sure how much.
Also, one head has one spark plug hole heli-coiled and in the same cylinder a hardened exhaust seat has been installed.

This set has also been baked and checked for cracks...checked out good of course. Have had them in plastic and indoors for around 2yrs or so. For some reason there has been some rust flashing on the exhaust side and rocker side of the heads.....just wipes off though.

Wouldn't be afraid to put these to use, I would have them CC'd before using, obviously. Oh, and again, these are bare.

Asking $150 + shipping.
Located in Colorado Springs, CO 80918