This lovely collection of short, fairly easy pieces by Emilie Mayer (1812-1883) was published in 1882 and translates as "6 piano pieces for the children's world". It's her op. 48 and the sheet music can be found on IMSLP or bought from Certosa: https://www.certosaverlag.de/produkt/mayer-emilie-sechs-stuecke-fuer-kinder-op-48-2/

I'm playing my 1907 Trautwein piano.