On page 221 of the Red Book, there is a mis-print. On the first line at the bottom of the page you have:
1878, 8 feathers........(500).....749,500 ... ( this line is ok, its the next line thats messed up )
1878,7 feathers.........(250).....9,759,300.. 30....40....50....65....these prices don't belong here, there shouldn't be anything after the last 0 in 9,759,300.