Age please on this bottle.

[bartshop62]

Found this bottle in a bottle dump in the woods next to a side of a highway the bottle dump seems to be different eras bottle dump. Also there was a civil war battle nearby. The bottle says

FEDERAL LAW FORBIDS SALE OR REUSE OF THIS BOTTLE

WM. SANDERSON & SON LTD LEITH SCOTLAND

Is this bottle from the 1930s like i saw on the internet or i saw on the internet its from the 1950s which one? Or possibly older or newer? It says on the bottom of the bottle WXI5
2. What does that mean please. When was this bottle produced? Is that the date on the bottom? Found this in Chattanooga Tennessee.

 

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[Mackaydon]

It certainly predates 1970 since the company moved from Leith to South Queensferry in 1969.
And the phrase: Federal Law Forbids Sale or Reuse of this bottle" began in 1935; so the bottle did not predate 1935.
Don.....