I have an Ibanez SCR220 which could use a new tremolo block for its TZ-30 bridge. Here is some information about the bridge: TZ-30 | Ibanez Wiki | FANDOM powered by Wikia
The TZ-30 was on other Ibanez models and has a heritage starting with the TZ-II/TZ-6 all the way up to the SynchroniZR bridge...
I found a rare Ibanez, a a SCR220BP, at my local Guitar Center. It looks like this:
The only real information I can find is from Rich's library of Ibanez catalogs. Specs include:
25.1" scale length
1 Piece Maple Neck w/Rosewood fretboard
V1 and V2 humbuckers