Thank you for your help. Yes I found out a fair bit about the Reality Series, but nothing that helped me date it. I hesitated to show the back because of the copyright issue. I have read (lots of times!) the rules about copyright from links on this site & as far as I can understand it, the picture should be well out of copyright by now. Also all the people in the images (or whom I might discuss by name) are deceased. Also it is quite a sad thing that we have the letter of adoption in 1901 and then just this one postcard. I think that Ada Caroline Ling (mother to Edith and Gertrude/May Martin probably had no option but to relinquish her daughter as her husband had recently died (we think in 1900 - but not definite yet). I suspect it might have been a choice between that or the workhouse
Well here is the reverse of the card. You can just make out the signature on the bottom as F Martin (Florence Martin, her adoptive mother). Thanks again.