I recently purchased new old stock Remington empty primed 16ga hulls. The product number is 23476. The hulls are ribbed green brass plated steel head Remington Peters head stamp. I have done some research and find the product listed on old Remington brochures, but not able to determine for certain if it is a 209 or 57 primer. With the availability and cost of primers not really wanting to un-prime one to verify. Thought I would check here before going that route. Any help is greatly appreciated.