platter

I recently acquired this 17 5/8" x 12 3/8" silver soldered player in a lot of stuff while freebie hunting. Not too sure about the "stolen property" stamp but I did an online search for the STEARS INC. and it appears to no longer exist. Can someone please help me identify this thing and maybe...

Hi, I found this platter today and Im having issues finding any information on the markings. it is stamped with a 55 and some strange picture ive attached some pictures any thoughts or direction to find out anything regarding this platter would be great thank you!!, see picture '

Found this platter in my back yard as a kid and stored it away as my treasure. I recently rediscovered my find. I have looked over the entire thing and can not find any makers mark or silver mark, only the numbers on the back (1830 16). Under some of the deeper scratches, it still appears to be...