Black sidecap with yellow pipe - NEED HELP!

[peterm]

Hi guys!

Is anyone of You able to tell me what sidecap this is? HJ possibly? But it is BLACK (although it looks BLUE on the pics)...

Many thanks in advance and kind regards,

Peter

[peterm]

.

[peterm]

Is there anyone who has an idea? Really need help!

Many thanks and kind regards, Peter

[David Fettes]

I am wondering if it is an NSKK cap with a replaced button.

[GAMS1]

You have the traces of the 2nd button in the front as well ?
Basically a NSKK side cap but reissued to somebody else ? NSKK Navy , TKS ?
Nick

[jmcm]

I see a yellow and a black piping?

[David Fettes]

Would that make it a NSKK Sänitater sidecap by any chance?

[jmcm]

would like to see other side of the hat

[David Fettes]

would like to see other side of the hat

I second that.

[peterm]

Hi guys!
Many thanks for Your kind help so far, much appreciated!
The other side of the cap is EXACTLY the same as the shown one, nothing had been sewn there.

Kind regards, Peter