It's a British Test stamp for (coil) vending machines. Commonly known as a 'Poached Egg'.
Most of the info about them can be found at Glenn Morgan's excellent 'Stampprinters'.
http://www.stampprinters.info/1936%20Poached%20EggTesting%20Label.pdf
hello londonbus1. thank you for such a fast response, read the link very good article, puzzle solved, the knowledge shown by the collectors on this site is great, thank you again. regards ken
hello all.this one has me puzzled, any idea's welcome, picture front and back, came in a world wide bag. regards ken.
re: what is it.
It's a British Test stamp for (coil) vending machines. Commonly known as a 'Poached Egg'.
re: what is it.
Most of the info about them can be found at Glenn Morgan's excellent 'Stampprinters'.
http://www.stampprinters.info/1936%20Poached%20EggTesting%20Label.pdf
re: what is it.
hello londonbus1. thank you for such a fast response, read the link very good article, puzzle solved, the knowledge shown by the collectors on this site is great, thank you again. regards ken