[Raleigh]

I've searched for and read a lot of the previous posts on mica capacitors. I didn't see any reference to the flat molded paper capacitors like Phillip Nelson describes on his site http://www.antiqueradio.org/recap.htm . These look about the size and shape as some of the mica capacitors and are marked with 3 dots like the micas.

Did Philco use this type of paper capacitor? Should I assume any of the flat rectangular type are mica?