Unidentified 25 year service award

[Rdclaydon]

Hello,

Was wondering if anyone can identify for me what is this medal. I picked it up from a retiree. Any help is appreciated!!

[tranchant]

25

hello
this the goldene ehrennadel fur 25 jahrige mitgliedschaft .
in NATIONALSOZIALISTISCHER DEUTSCHER MARINEBUND;
25 years services in deustch marine organisation krieg marine veteran
best regards
patrick