Here is a vintage French seed label that features a lovely illustration of white, purple and pink flowers. I did an online translation of the text on the label, Belle de Jour Ordinaire, and came up with beautiful ordinary day. I’m not great at identifying flowers and that translation doesn’t help much. All I know for sure is that they are pretty and I think they are petunias. Feel free to correct me if I’m wrong. This type of vintage seed label would have been pasted on a seed packet or jar of seeds for retail sale. 
Click on image to enlarge.
Edited to add: Thank you for your comment BA. I believe you are correct in identifying these as morning glories!
They look like they could be morning glories, which would go along with their description.
Thank you for your comment BA – I believe you are right!