Texas Chainsaw Massacre Leatherface Chainsaw Rubies Toy Prop 2003 Halloween Vtg

I’ve removed all screws and split the housing of the toy to check the electronic components. There is some debris dust within electronics compartment as well as some corrosion to electronics due to moisture exposure. Some battery acid reisude in battery compartment as well. Vibrating motor is working, chainsaw/screaming soundbox/speaker is working and very loud but does have some static/warbled sound. I’m not sure if the sound is degraded slightly due the the quality of the soundbox or if it is due to the corrosion on inside electronics. Dust and loose fibers on toy and within crevices, marks and scratches as well Paint/finish is sluffed away in some areas, see saw handle. I believe the finish is reactive to hand oils?

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