Need Manual or part numbers for Henry backhoe model 120

[truce1000]

Broke a tooth on the main gear that turns the digger arm, I think I know were to get one but I need the part number. So I am looking for a manual or parts list. Henry Model 120 SN 41g670 (Might be a Mark V?)

 

[Ltcmikesr47]

Do you have any pix of that part? I am trying to find out who made my backhoe.