I listed it as allowing international buyers by using the ebay Global Shipping Program (GSP) which, AIUI, shows the bidder in any country the shipping cost they would have to pay.
I idly wondered if, for political reasons, there were any restrictions on sales to Russia of electronic items, so looked at the government website. This seemed hopeless and clear as mud, with lots of parts apparently not working in my browser, and I got nowhere. I see from the much clearer Russian Government website that they have restrictions on the import of "Radio-electronics", but my item is not anything to do with RF.
I then looked at my ebay listing and was surprised to find that Russia was not on the list of countries covered by the GSP. Presumably, this means that the item was listed for international sales even though not covered by the GSP and that I will have to, if I accept the bid, arrange my own postage.
Before the GSP existed I did post things to far flung corners of the globe and never had a problem, but is Russia in some way now different?