Hello and question about Margaret tempest cards

[ccbaa1]

Hello I have just found this site it looks great! Having completed collecting all the Little Grey Rabbit books I am now doing M Tempest's postcards but also other Medici children's Molly Brett Racey Helps etc. I have the Postcards from the Nursery book by Dawn and Peter Cope which is fantastic,but I have a few questions as a newbie to all this so I hope you don't mind me asking them here. Some postcards were done in sets or packs of up to 6 cards I have some which are listed as an earlier packet no in the book but the card has the same title I presume this means they were re printed and given a higher packet no eg some listed as pack 52 I have as 84. Also does anyone have any info on dating medici cards? Some have brown writing on the back at the bottom, some brown on the side and some blue writing. Most have a white border round the edge of picture am I right in presuming those with no border are modern re prints it is difficult to tell on auctio sites. Does anyone else collect children's cards? Sorry for ramble Thank you!