I usually stay away from this type of processing. Especially since it’s a far cry from my typical, realistic HDR imaging. But, just for fun, I decided to apply a few effects in Nik Silver Efex Pro 2 to an image that I posted in realistic color a few months ago.
For this image, I took the original and applied a sepia toning with a very light vignette. Then I selected one of the many boarders available in Silver Efex Pro for this burnt, antique look.