This picture / memento belonged to my Grandfather. Looking for more information on the picture. If possible narrow down the year(s) and regiment this may be for.

Is this something all service men received?
Is the head of the person receiving the memento, or a stock picture?

At top appears to have been renderings of 3 individuals that were cut-off at some point.

Originally the thought is this was my Grandfather, but after some investigation I'm wondering if it may be my Great-Grandfather. My Great-Grandfather married at the age of 28. From what I have read this is a good indication of military service.

My Great-Grandfather was born in 1830, recruitment year 1850. My Grandfather was born 1879, recruitment year 1899.

Both are from the village of Zdiar, Slovakia. The recruiting county would have been Spis (Szepes/Zips).