This just in from Gunnar Andreassen:
[Fred Spencer made an analysis of Donald Duck in 1935 and with it followed several model sheets: an important document in the development of the Duck. I found some of the pages from this on eBay a couple of years ago, but photos of page 3 and 4 (out of 5) were missing. Could you or any readers of your blog provide or post the missing pages ?Enclosed page no. 1 and model sheet no. 1.
The photo of Spencer comes from a 1932 staff photo.]