Up for sale here is this NOS vintage Good-All Type 620 wax capacitor, from the 1960s and Made in USA. It is marked .068 uf 600v, and tests around .0728 uf, with no leakage and minimal ESR. This would be great at full voltage in an amplifier. This is REALLY rare and is a really nice cap. Please see my pictures for details, dimensions, 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!