Master cyl install

I have a booster and Master cylinder together in the scrap pile from a 67. I can split it and take pictures if you want. I believe that tab comes off and there is a ring that bolts on using the two bolts. Guys never install them so they go missing. They just leave the shipping tab on I don't use Power brakes on my cars . That's Just me. I am not sure on power brakes but like I said I can look. Let me know. Steve