הרב נפתלי טייטלבוים אב"ד נירבאטור גיט א הכשר אויף קאקאנא"ט אויל אינדערהיים

"First Hungarian Coconut Oil Factory"

Looks like back then they weren't so concerned with 1) the content of the advertisement, and 2) That things be more than כשר. No mehadrin or Mehadrin min haMehadrin. Just plain כשר. You want something more than that make it yourself. Or maybe there was no חשש of hirhur in this case? Then again maybe this newspaper was like in the 5TJT or Jewish Week or Forward equivalent, a place that had more lax standards. Tough to know what they were thinking back then. But who knew that they mass produced stuff back in Europe!