Help ID bomb fins, please

[Tango_Kilo]

Hello! I picked this up as a fun resto project for my USN Veteran husband.  It came from a fellow who runs estate sales; he said it didn't sell several years ago but it was too cool to scrap so it's been in his garage. I can find no markings on it, and would love to know the era of it, the weight it would've been as loaded, and likely color scheme. We'd like to restore it as closely as possible to original. Your help is greatly appreciated! 

Overall Height: 37.75"   Ring Diameter: 14"   Fin Height: 9.5" outside 19.5" where it meets the body. 

THANK YOU! 

[Richard Auld]

I will ask our EOD department at work but it may be  awhile as the Bundswehr are on limited staff and hours.

Rich

[Waffenamt]

I wonder if the round plate was for where the retarding parachute was attached?  Its deffo a post war fin.