When I was about 2 or 3 my grandfather gave me a small leather purse, measuring about 1.5" x 1". Inside was a small coin, which is square. Its a little tarnished, but from research I did about 15 years ago, It was given to soldiers in Holland during WWII.
My grandfather died in 1974 and I have treasured this little purse and unusual coin ever since.
A couple of years ago, I had a closer look and noticed that on the back is some writing. At the top left it says Watchmaker. Scrolled across the middle it reads H Venables and at the bottom right it gives the address of Market Street Guildford.
According to the Kelly's Directory of 1963, H Venables was a jewellers whose premises was at 22, Market Street, now long since gone.
The coin has been difficult to photograph, even with a good camera, it has not been easy to get a close up of it. On one side is 5c with the date of 1939 and on the reverse KONINGRIJK.DER.NEDERLANDEN, which translates to Kingdom of the Nederlands.