Postcard book info?

So I just received my postcard book vol. 3 today. I know about volumes 4 and 5 (blastoise/venusaur themed) but I cannot for the life of me find any info on volumes 1 and 2. Do these even exist? Does anyone know anything about these?

I’m particularly interested in finding the origins of some of the Himeno-esk artwork that I’ve only ever seen on ‘bootleg’ sticker cards. Perhaps theyre from vol 1 and 2?!?

Please help if you can!!