Land Yacht aluminum plate

[SnowWanderer]

I have one Land Yacht aluminum plate for my 72 Trade Wind. I need two! Does anyone know if these were originally produced by sand casting or if they were originally ingraved/machined?

I am considering using it to produce a sand mold, to create another one, however, I know that the reproduction will be very slightly smaller than the original, due to shrinkage upon cooling. Unless someone knows a source for another one!

[HiJoeSilver]

Not for sure but looking at them I'd guess sand cast.