Are these valve covers factory?

Car is in storage till end of April, so can't get a better picture right now. Believe it is a where the engine was built and passed inspections or something. Someone else here can remember the decal place where I got it, E C something? It was $25. or so.
Okay, the sticker says:

This engine has passed a special electronic quality test at Chrysler Corporation Mound Road Engine Plant