Here is: Soviet Russian Army Radio Transceiver R-105 Headphone Lid Cap.
diameter = 55 mm.

Condition: new, spare part.

Shipping: I'll post this item from my Bulgarian store via international shipping. I ship my items as soon as possible after payment received, that is why please don't place any negatives to my DSR profile. The number of your mail piece is available for tracking one day after item shipped. All delays are because of the postal service !
According to my experience the shipping time takes usually up to:
5 to 10 business days to Europe
up to 1 month to America, Australia, Asia and Africa
I always write in eBay the number for tracking after item shipped. I do all of this because I know, that you are looking forward to receive your item. Check out my other items!