Ross,
I do not know the perfect auctioneer to assist you, but I may be able to provide some insight as I have been involved in liquidating some relatively valuable specialty items. You did not mention your role or stake in this, and you need not disclose it; but it matters a great deal what it is.The simple reality is that it takes substantial resources to properly sell items of any sort, but especially those that appeal to a niche market, or else you will achieve the sorts of returns that were mentioned in the previous post - or come away feeling that you did.The keys to maximizing the return for items are:1. Getting the items into the optimum condition for a sale,2. Collecting, cataloging and describing the items extremely thoroughly, and researching their expected value and 3. Presenting them very professionally and to the widest possible audience. All of these "cost" resources, someone's time or someone's money, but will usually be repaid in the rate of return. If it is your personal stuff, or you stand to benefit from a good result, expect to take a lot of time to do these steps or to pay someone to do so. Auctioneers who show up at the auction, sell the stuff and disappear will not maximize your return unless you have done all of the other things above. Exposure to large groups of buyers costs money, in fees and commissions. Finally, consider on-line auctions ; I have used them to advantage where I prepare the materials for the actual seller who then handles the transactions part of the deal; listing, selling, shipping etc.
Karl