Cone shape object

[Coastie]

Could be interesting as such.
Probably would not mean the same as a WW2 USN vessel though.

Very true since SMS Emden wasn't a Sub Chaser

 

[paul ron]

when i first saw this, i thought it was a radar refector... usually up when divers are in the water.

https://www.amazon.com/MARINE-CITY-Aluminium-Reflector-Octahedral/dp/B08F5K4B7R/ref=sr_1_12_sspa?adgrpid=1234751875608409&dib=eyJ2IjoiMSJ9.57RxzI8TYwsIzSX58KnOdX1gOTsVf91z06wJ-SXetdPfJrRCVfMHxvTmXO2lEEJzuvCCririuXCTsmNH59a_s0muNTqj4dxaVFycVCRhpuDZr5bq4YxVYa4zy-6ej5YiSMlcSm28Tm_K6UXyh-6gFA89tsOOD-3bjUzY0mSKLZq3NKSJENFmsb4pgFPzTNauexMSHbedTxCXrEjdNHFXY60sIJeAtk4z3AaWvnYxepA.SBOvNOYeQfrj3sADO0LoRodEe3pPCrr9RFvR60TYM38&dib_tag=se&hvadid=77172158461607&hvbmt=bp&hvdev=m&hvlocphy=98052&hvnetw=s&hvqmt=p&hvtargid=kwd-77172241828340%3Aloc-190&hydadcr=9144_13639085&keywords=radar+reflector+for+sailboat&qid=1715255517&sr=8-12-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&psc=1