Hi,
According to the blue book of gun values, the browning imported 220 actually lists for less money. However I would suspect that a serious browning collector may pay a slight premium for a browning marked 220. I saw one at Cabelas sell for about $650.00 in about 95% condition. Much more than blue book value. Blue book value seems to be on the low side most of the time though. Hope this helps a little.