Found it here:

http://www.archive.org/details/middleenglishvoc00tolkuoft

Here is another signature that came up on eBay. It looks pretty bad to me; personally, I wouldn't pay a dollar for this one.

http://cgi.ebay.com/ws/eBayISAPI.dll? ... EWAX:IT&item=280374426763

And finally, here is a "Ronald" only one.

I hope these are helpful. If you do have an item signed "Ronald," you do have a rare item because Ronald was mainly used with family or close friends. See the Tolkien Family Album.

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  Murray, Rosfrith 14 December 1967 (Leaf 2b).JPG (86.23 KB)

Here is a good one signed "Ronald Tolkien".

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  Jennings, Elizabeth 3 December 1955.JPG (732.32 KB)

Here is a Tolkien letter signed "Uncle Ronald".

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  Brookes-Smith, Jennifer 26 September 1947 (Leaf 2).JPG (707.87 KB)