[Boatanchors] Capacitor question

[Chris Bower]

Hi all, I hope everyone is having a nice Sunday (or whatever day it is at
your locale).
I have a question about an old capacitor. I'm currently freshening up an
Eico 249 VTVM. It was my Dad's, was working when last used about 10 years
ago, and still does although it's way out of calibration now. I'm
attempting to restore it electrically for daily bench use. Of course, one
of the repairs I'm making is to replace most all of the caps. Here's where
the question comes in.

There is a .1 mfd, 1000 volt capacitor that has no brand name on it, but is
marked "Type 85TOC". It is rather large and cylinder shaped, heavily coated
in wax, and appears to be made of yellow-colored paper or cardboard. In the
schematic, it is connected directly to the test probe in certain function
switch positions.

Here is my question: one end of this capacitor is marked "Outside Foil". I
can't say I've ever seen this before. Could someone enlighten me about this
marking? I understand how this capacitor is built, likely two long foil
strips seperated by a dielectric strip and all rolled together. But why
would one need to know which foil strip was the outside one? It doesn't
appear to be an electrolytic capacitor as there are no polarity markings.

I can get a very reasonably priced replacement film capacitor from Mouser
with exactly the same specs; will that work as a replacement?

Thanks much in advanced! I should mention I'm not new to electronics but I
am fairly new to Boatanchors. The bug bit me about a year ago...quite hard
;-)

Chris Bower
N8NW