Identify 115 Merc

[Gerald]

I have come by a 115 HP V4 Mercury power head and jet drive. I cannot find an identification plate on the motor. However, There is a flat spot near the flywheel with numbers that I would assume are casting or part numbers? The numbers seem to be stamped with three different stamp blocks 185350 ............. 30FT ............. small numbers 615 94.
Can you tell anything from these numbers or direct me to a different location on the motor for other numbers.
The jet drive has a stick on plate but I can only read 115 JE. I would assume there was a T after the JE.
Thank you in advance.
Gerald