Also for a more local market I think the January horse sale at billings livestock includes a tack sale it may be to late to get them catoluged though. You could email them pictures They are pretty straight shooters, and would set a reserve at what they feel they are worth. I think the January sale is the only sale that they advertise for bits, spurs, saddles and other collectibles. You could also put a picture on here and get some offers that you could take or turn down, where with a auction you would have to pay a percentage of the highest bid if you no saled them. That sounds like the best idea to see what the local market would bear at no cost to you. It is pretty easy to put pictures on this.