Thanks Gadge

Sorry for the late reply - haven't been able to type all that much after a Homelite line trimmer decided to kick back when pull starting and slice my finger open.

Strange ESS changed their castings, usually companies look to keep the molds the same as long as possible, to reduce costs - although i guess they saved 0.001 cents in zinc by not writing lettering.

Do you think they used unmarked ones earlier or later in the production?

Regards
Tyler