Ok-- you have a total of 5 fuses as Forceflow has pointed out.
The one for the bridge rectifier is a 10A fuse and will be on the bottom side of the playfield.
The remaining four are in the fuseholder in question. Confirm these with a multimeter before putting in fuses, but I can tell you that the 3 that carry 6v are 15A, and the one that carries 110v takes a 10A fuse. Using your photo as reference, the "bottom" fuse should be the 110v. Again confirm this with a multimeter.
Schematics for your machine can be found at http://www.ipdb.org/machine.cgi?id=119. See colums 1&2 (for the 4 in your fuseholder) and 22E (bridge rectifier). The fuses are clearly marked in text, and with the fuse symbol below.
z_sch_fuse_(resized).png