Found this on Gunbroker Replica Arms 1875

[The Pathfinder]

http://www.gunbroker.com/Auction/ViewItem.aspx?Item=544485339

This piece does not have the  cross pin cylinder pin retaining system. It's also the highest numbered frame I've seen this way. Not sure but I think I've seen lower numbered guns than this with the cross pin. Serial #326, .357 mag.

[Fox Creek Kid]

Uberti changed from the correct cylinder release system, as seen on this revolver, to the current incorrect one at approx. serial #1,000 ages ago.

[The Pathfinder]

I know it changed but everyone of the correct style I've seen have all been in the 2XX range, haven't personally seen one in the 3XX range before. There is also someone out there that's been looking for one of these, that's why I posted the link. My own is in the low 2XX range and is in .45 cal.

[Fox Creek Kid]

http://www.cascity.com/forumhall/index.php/topic,12461.0.html