Hey there! The patterns are probably late 40's early 50's. I would not date them earlier than 1946 or later than 1952. The hair is one way to date the patterns. Also the return to the more Dior look of the second pattern tells me it is probably 1947-8 to start. If I get crazy busy - which is likely to happen - happy birthday! I know this is very early wishes but I am at the end of the school year here and its crazy around here. So, cheers m'dear and many happy days and years to come.
I really do love reading your comments, so thanks for leaving them! x