(I'll keep in touch!)
Our recommendation is to be in touch with an established appraiser for this information. If they have been in business for a while they may be able to pull this from their records.
Our feeling is that any information provided by a realtor would be speculative at best.
due to the age of the data needed, I can't pull it up on the MLS (post 2005 only). I will ask the board on Tue for the info and send to you.
With kind regards
PS I love those homes, I used to live in one myself!