Kindjal Arabic(?) translation help

[Klop]

dear members,

I got this basic kindjal which has what seems an arabic inscription. Some of the characters look like numbers to me but I don't understand why these are being mixed with letters and how to read this.

If it were only four numbers it would be easy to conclude a year, but in this case...

Can someone clarify what is written, are the numbers and letters meant as two different lines or am I on a completely wrong track?

Many thanks in advance,
Eric.

[GePi]

I'll give it a try (disclaimer: No native speaker or reader)

عمل شافی ۱۳۳۰ - amal-e Shāfi 1330
Work of Shāfi and the numbers read as an al hijri date would correspond to 1911 to 1912.

[Klop]

Thanks, of course you are right about 1330 instead of 1335, I should have known 5 is a circle and a dot is 0 :D