Up for sale here is this set of 2 NOS vintage ceramic disc capacitors, from the 1960s or 1970s and probably Made in USA. Each is marked 503, which just means they're .05 uf caps.  They should be 50v from the size.  I don't know who made these.  Please see my pictures for details and sample 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!