Ford Tri-Power Carb Question

[Edselow]

I have purchased a Ford Y-block tri-power setup. It arrived today and I'm curious about the three carbs as all three have different numbers cast on them, though the carbs look almost identical otherwise (at least to my untrained eye). Maybe someone here can help me figure out what I have. The carbs have the following casting IDs:

EBU
Model 8BA
Model 59

Any help would be appreciated. Thanks very much.

[Paul2748]

The 8BA is a 49 to 51? carb. The EBU is somewhat later, but don't know what year. Not sure about the 59

[Deyomatic]

Is it possible the 59 would have been the model on the 59A Flatty?