Up for sale here is this box of 5 NOS NIB vintage Sprague Black Beauty capacitors.  The caps are all marked .1 uf 600v, and test around .1-.115 uf, with very low leakage.  They will work great at full voltage.  Please see my pictures for details and test results.

US shipping and handling is $5, and international is $18, no matter what quantity you buy.  All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping.  If you have any questions, please ask.

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