65 Barracuda Power Brake Master

Ok, I have a 65 barracuda with power drum brakes.

I’m replacing a master cylinder that is leaking into the brake booster.

When I pulled the master back off of the booster, I noticed the screw and tear shaped washer that are holding the “guts” into the mc (in my photo) was not there.

Ive also seen gaskets between the master and booster that have a cut out for the screw and washer to sit, like mine, and some just have a small circle in the center of the gasket.


Main question is, was my master cylinder installed incorrectly and is causing my leak?
Q
Thank you!

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