Dixie Restorations is now able to duplicate the anti-corrosion finish found on NOS and most assembly line CC alternator and starter housings. I'd like to hear input on how early y'all have seen this coating. I have originals that show evidence of the light brownish/gold tint back to '67. Does anyone have a NOS or survivor piece that would date back earlier than 1967? Have several customer orders in the shop and I would like to narrow down the years when this finish was first applied. Thanks for any and all help with this.