Up for sale here is this set of 2 NOS vintage Sprague Vitamin Q PIO 81P capacitors. They are marked 1.0 uf 300v, and test good.  They are guaranteed to work great for you.  Please see my pictures for details, dimensions, and sample test results.

US shipping and handling is $5, and international is $18. If you have any questions, please ask.

I have more capacitors and other vintage electronics listed--feel free to take a look!