Got this from Bill Blackbeard many years ago.
An Al Taliaferro drawing from Alameda Times-Star, Nov 10, 1937.
It was reprinted by Gladstone in the 80's and is often credited to Floyd Gottfredson.
How to spot a Mickey drawn by Taliaferro? The easiest way is to check if Mickey is moving like Donald Duck. Then it's Taliaferro behind the pencil. Here are two samples of how he drew characters walking. (Notice the dust clouds.)