As you can see there are still many questions to be answered.
So it was a real surprise to find this - just about the only image for sale at the bookseller's market in De Pijp.
Therefore, on this second Saturday in January I like to express my gratitude to her for the source of inspiration she still is.
In the genealogical chart below I have mentioned all Dutch people playing a part in the above story.
When I was a small boy living in the house of my grandparents during the 50's, every Sunday we had lunch together. When Isaline celebrated her 15th birthday she wrote a letter to her father, saying that she received two medallions, one from him and one from her grandparents. So with the permission of her grandparents she exchanged theirs for a brooch. In an effort to prove my case I have to say I am also not so sure whether the writing on the rear has been put there during Maria's life i.c. It looks very much like the type of writing that was taught in the years after WW1 at the earliest.
Usually my grandfather around that time was listening to the radio. Now, if we have a closer look at the ladies neckline in the picture, we see something there. Certainly the writing on the decal would qualify for an even later period. So I agree with the assumption made by James Morley, that this writing possibly has been put there by the dealer where he bought this photograph.
Boer" which translates as "Presumably Mrs Gowthorpe nee Boer" (thanks to Stereomania for the first word - [...]).