Question: Antique 20’s-30’s Winsor Newton Watercolors Help Identifying?

[melism003]

I have an old tube of Winsor Newton Watercolor.  It’s Davy Gray.  Does anyone know what pigment or pigments they used to make it?  I know I read about slate powder.  I was also wondering when the tubes are from, are they really from the 20s-30’s?   And the tube and cap, are they made of lead, metal, tin? A mix?   Am a bit worried about it being toxic but I’m just keeping it for collecting.  I read that the SL means select list of pigments that I guess are permanent. So would the pigment tubes without the SL mean they’re less toxic? Or this has no affect on toxicity?

 

 

 

[Yorky Administrator Ormskirk]

It is indeed described as powdered slate, and yes, old tubes were made of lead.

Doug

We must leave our mark on this world

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