Hi Benny, Lia and Maureen,
I don´t know exactly when these blisters were sold. But I can help you with some years.
All the smurfs you have been talking about were most likely sold already in 1984.
But not in the normal articlenumber serie. Here are some facts:
Aerobic smurfette was sold in 1984 in US and have articlenumber 6243.
The pink and blue babies were also sold in 1984 in US, but in a special baby-smurf issue and got articlenumber 6585.
Most likely smurfette with the baby also was sold separate in some other way in Europe, because of 2 reasons. First the year 1983 and second that Schleich claims it was sold 1984 in its book made 1985( sold in the 1986 catalogue). And this book was made only one year after so I would assume they got that year correct???
Regarding the markings on the blister:
The type of french marking on the blister Schleic started using after 1983 and together with the ages-warnings I would say that 1984 is a good year for this. Later also possible but not before.
So these blisters could have been sold between 1984 and 1990.
If you check the new Schleich ánniversary-book they say that after 1985 the demand for the smurfs more or less fell overnight, and that over 25 million unwanted smurfs sat on the shelves in Herlikofen. So when Schleich got these problems they closed the factory in Hongkong( last smurfs made in 1985) and made them for a short while in Macau before moving to China( Probably started with C.Y. Lee´s ( former Schleich office manager in HongKong)new started company after the bancruptcy.
During 1978-1984 the smurfs made in Hongkong were made for the "non-european" markets like US, Australia etc.
But in 1985-1986 when they had large amounts of unwanted smurfs in stocks they started spreading the Hongkongsmurfs also to Europe, sometimes painted in Sri lanka. And these many times seems to have been sold in different types of blisters??? The reason for the blisters could also be that the smurfs sold did not have the markings requiered so they sometimes used blisters with markings instead, like with the double wrapings on the supersmurfs( in boxes and in blisters??).
The french supersmurfs sold in Mafi-boxes, which were printed in Hongkong must have been made before 1985. And since smurfette on bike was first sold 1984, it could be that the french supersmurfs-boxes only were made for a short while around 1984( +- 1 year).
So between 1986 and 1990 it seems many smurfs were sold different ways in blisters, greetingwrappings etc. HK-smurfs on the stamps etc. I think they had to get rid of all the HK-smurfs they had in stock in different ways.
But the blisters you show on the pictures can also be from 1984 and maybe it was this way these 3 smurfs first were sold in Germany???