Thanks Gaspare! Usually Big City Badges are the most desired especially late 1800's to early 1900's especially if they are made of precious metals. Early presentation badges made of gold can have diamonds and or other precious stones such as rubys and they will command a higher price. I guess kinda like anything SS will be more valuable than most WW2 German stuff. Also if you have provenance that always adds to the value, got a good clear pic of the guy wearing it and that helps as well. As with anything condition, condition, condition dictates price as well. I have seen some rare badges sell for as much as 20,000, the more rare the more its worth. As far as legal to own yes they are as long as they are obsolete and not a current badge used by any department. Owning or selling some current badges like a current LAPD or a current Federal badge can get you into trouble and a knock on your door if they know you have it. That why I have only collected very early ones that are obsolete. I got an obsolete badge from my hometown police department right from the Captain, brought it right to my house, he knkos I am a collector and have LE in my family so it was no big deal.

The brass knuckles, spurs, iron claw and old handcuffs plus the Deputy Marshal badge from Compton California all belonged to a deputy Marshal there in the late 1800's to early 1900's, around 1910 Compton was consolidated with Los Angeles and the LAPD took over jurisdiction.
Will post more pics when I get time. Thanks for the compliments!