first post here guys, i know i am bumping an old thread, but i though some of you might find this info interesting/helpful.
I just purchsed my first 1894 today, i believe it is a CEO. there is a C on the bottom of the barrels, an E - and the ejectors work, but the next letter is what looks like a Y. it does have ordinance steel barrels.
anyway, this gun has the floating pins/improved lock and the serial is 132452, this narrows the gap between the highest standard lock and the improved to 350 guns, that almost cuts the previous gap in half!