Scintilla distributor block id?

[mike furline]

Anyone know if this Scintilla distributor block (P/N 10-26756) is specific to a certain magneto or engine/dash number?
Allison or Packard/RollsRoyce? 1710-?? or 1650-??

[51fixer]

IIRC it is Allison. 1 of these were at the aft end of each head run off the cam.
Otherwise next guess would be Ranger 770.
Not Merlin that I know off.