looking for old advertisement in treasure mag

[palmercanyonsavant]

About 20 plus or minus years ago I saw a advertisement for a new sluice ( see sketch) , I bought it and it worked fairly good ,but to this day I can not find it on the internet or patent search anywhere.

It was strange the riffles slanted up towards the center and overlapping each other but on the edges they turned upward and caused my heavies to dump into the pockets on the sides.

If anyone can point me in the right direction to who still might know of this or themagazine article that was in a treasure magizine.
thanks

 

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[Hoser John]

Popular Mining-self constructing goodies mag that is gone gone gone-between 85-88 is all this ol' dog can remember--John

 

[russau]

i saw something similar just awhile back on the net,but i cant remeber where it was i saw it !try the GPAA site.