2 in existance, 1 year old price

http://www.tf2outpost.com/trade/16795275 - B/O 8 buds at least a month

http://www.tf2outpost.com/trade/18225446 - B/O 10 buds

From the forum: http://forums.backpack.tf/index.php?/topic/6033-new-unusual-price-suggestion-guide-the-cheat-sheet/

B/Os alone cannot be used to make an unusual suggestion. Just like we don't like to use offers as the only proof to raise the value on an item, we don't like using B/Os alone to drop the value as this has frequently caused bp.tf to lead the market with consecutive suggestions every 1-2 weeks dropping the hat (see Miami Wraith). This also creates an issue when future suggestions use those values as proof when they are still inaccurate.

​​Exceptions: There are rarely situations where we feel B/Os can be used as the only proof in a suggestion. We will accept such suggestions ONLY if there are literally no usable sales in the last 2 months. In these situations, the suggester must show proof of recent sales and why they are not usable (quicksell, sold for more unpriced hats, etc.). In these cases, there is frequently a large buyer-seller gap and dropping the value based on B/Os might actually result in a few sales that could then be used to refine the value.

There are no trackable sales in at least the past 5 months. Two out of two are listed for under the current price, Neither of both hats are duped, meaning this current price is not accurate anymore, and a conservative bump down is needed.