Has anyone seen hubcaps like this before?

[Love 70 Chevys]

These are the two front hubcaps from my '70 K10. I've scoured the internet and can not find any pictures or literature of the time that show these hubcaps. I believe them to be original, as my truck is a two owner survivor that has never had any mods. It is a no frill work truck, and is a very early '70 as I have the original sales receipt and it was purchased in the fall of '69. The closest thing I found were 1970 impala hubcaps, but they are slightly different and are more "chromish". These appear to have always been sort of a "dull" finish. Simple unpainted, chevy bowtie in the rear, and the center punched out in the front for the locking hubs. I don't think I can rework these to a presentable level and would like to keep everything the way it was when it left the factory in PA. Am I out of luck here?