I have a set of new (never out of the packages) 48mm Schuler imaging filters that I purchased within the last 6 months from Adirondack Video Astronomy.
They consist of a set of 3 RGcBc filters with built-in IR blocking, a clear filter without IR blocking and a luminance filter which is clear with IR Blocking. These filters are mounted and ideal for astro-imaging.
I prefer to sell them as a set of 5. New, they would cost $577 plus shipping. I will pay for shipping and insurance within the CONUS. I prefer PayPal but will accept USPS money orders.