I have an old cycle with a Brooks leather saddle marked 890/3 (or B90/3). Does this code indicate its year of manufacture?
That number is probably the model number of the saddle, which is what Brooks saddles are typically marked with, not the year of manufacture. But, from that model number and from the construction and appearance of the saddle you might be able to figure out what year it was made. You should be able to research this on the Brooks website http://www.brookssaddles.com/ or the Wallingford Bicycle Parts website (also Brooks specialists) http://www.wallbike.com/. If you can't find an answer online, you might try emailing them a photo of your saddle. As a Brooks owner you might enjoy this Brooks ad on my website, too: http://www.jimlangley.net/brake/brooks.html.