My Grannies, Mother's Porcelain Slipper

This little porcelain shoe belonged to my Grannie's (if still alive would be 145 years old) Mother. I have absolutely no clue what the hallmark is. It appears to be EYYR/25. All the other scribbling is something my Grannie or her Mother did. I would LOVE to have any sort of information that would help identify this cute little shoe. Thank You!