[GreenKeys] Gear Help

[Til128 at aol.com]

Hi gang:
 
I am trying to identify a driven and a pinion gear.
 
They are both nylon
 
The #s are:
 
Pinion - 307846
 
Driven - 307847
 
None of my lists come close.
 
Any help would be appreciated.
 
Thanks in advance.
 
TT
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