Imperial Russia navy or Marine school badge?

[Noor]

Hi all,

 

Picked this one up and I believe it could be Imperial Russian Navy or some marine school shoulder title (massive in this case!) or a cap badge? Could some of you can confirm please? two bottom lugs are missing.

 

Thanks,

 

Timo

 

[Wat05]

Знак с контр-погона учащихся штурманского класса торгового флота РИ

 

Badge from the counter-epaulette of students of the Navigation Class of the Merchant Fleet of the Russian Empire

[Noor]

Many thanks!