whats this breather worth??

If it's a needed part 20 ta 30 dollars more or less I would snag it up, they don't hit the market very often if it's a real 340 year correct part you would like to have
We all know in the long run they could be gone or not show up again for sale is what I have seen. But who knows what could happen in todays market, there is allot of selling going on.