So I've been working my way through PR's whole grain artisan bread book with fairly good results. I noticed that for the his sandwich loaves, he is recommending a 8.5 x 4 loaf pan instead of the standard 8.5 x 4.5.  Is this a typo? If not where can I get one? I've just spent an hour online looking through amazon and the various other kitchen gear sites with no luck. 

Thanks for any suggestions