Identify this lifter?

From a 69 383, (Sorry for posting in the SB forum, but did not see a R / RB specific forum.......).

Mainly just trying to see if this is Original / OEM / Aftermarket?
I suspect aftermarket since I don't remember seeing the "two tone" look back in the day.
It's Hydraulic and surprisingly there is no oil port anywhere around the circumference.

cheers

Craig[/QUOTE/]
No pinhole in the oil groove..??? Some companies sold solid cams with "converted" hyd. lifters, there was a solid insert retained w/a clip instead of the plunger/adjuster.
Adjustable valvetrain on that 383?