Please Help Me Identify French Stamp On Postcard

Hello,

I have a French postcard which is from 1958 judging by the cancel on the stamp. I have tried looking up the French stamp in my copy of Scott which is from 2017 and cannot find it. I need more practice with the Scott admittedly, but have not been able to find this stamp after two different sessions of looking for it. Any help you can give me in identifying this stamp will be greatly appreciated. Here is the postcard, front and back, I hope you can read them, had some trouble resizing.





Thank you for looking at my post and for any help you have given me, Julie

Definitive, issued in 1957, known as the Marianne de Muller, after its designer Scroll down to see

https://www.timbres-francais.net/ti...te-1957.html

Thank you GeoffHa, for answering my question, I appreciate it very much. I am still puzzled as to why I can't find it in the France section of my 2017 Scott? I looked at the catalog again and still can't find it, could you, or someone, tell me what I am doing wrong? I looked in the Common Design Types as well and it wasn't there either. I am puzzled. Thanks, Julie

Check Scott #755

Thank you 22crows - that is of course, the entry for the stamp. I appreciate your help. I was looking in the area of the 1957 stamps, and totally missed this entry. I appreciate your help. And GeoffHa's help as well. Julie