The left picture shows highly stylized Arabic (possibly Farsi, but I don't think so).
The picture on the right shows a couple of words as well (less stylized). The hijri date 1188 is probably 1774 according to the Gregorian calendar, although depending on the month of manufacture it might be as late as March of 1775.
The circle and dot shown in the center of the left photo might represent the number 50, although the dot may also be part of a letter and the circle part of other diacritic marks.
I can't make it out just yet, although I'll keep trying.
Any information on provenance?
-Ammon