Fuse Block

Can some tell me what size fuses is use for a 72 Demon .... Brake, instrument, Dome, tail. ect. my fuse block looks like it used to show what was what, but through the years its has been scuffed up too much by removing fuses.
I seem to have a problem with by brake lights ... I don't have power on the power side of the fuse box ....BUT I have power on the other side when the Key is on and none on either side when key is off. I know It should have power when key is off. :banghead: I hate electrical problems. tail lights work turn signals work, flashers do not work ( new flasher) looks like dome light was blown and instrument fuse .......not sure if this all happened at same time ......... I can jump to battery to brake switch and brake light work. any input is appreciated driving me crazy.