If there is a plain steel option out there, I'm not finding it...the Jeep suppliers have chrome or stainless, the blackout option has a different setup, Chevy suppliers look to have only chrome or stainless...the parts manual shows only one part number for the B-series and Route Vans, but in several of Bunn's books, there are photos of black headlight doors or rims or trim rings on larger B-series trucks and Route Vans. Bunn also elaborated in his illustrated buyer's guide that Korean War supply restrictions started late in '51 into '52, where headlight doors and parking light bezels were painted black instead of chrome plated. I have a pair of black ones that I sourced on eBay years ago, and they are heavily weathered, slightly pitted die cast. For C-series trucks, I have not seen any painted headlight doors documented. Years ago, I was looking for low cost replacement headlight doors that were used on older RVs and construction equipment, but found nothing any different than what was available from Roberts. As far as I know, there is no plain steel headlight door available as chrome or stainless are the readily available options on the market.