Literature & Shotgun shells|Winchester Swap Meet|Forum|Winchester Collector

I sold several boxes of Peters Mallard design .410 shotgun shells in December at a Phoenix Gun Show this past December for $25 ea.  I didn’t do a lot of research as to value but it was time to sell stuff and buyer didn’t quibble so maybe low?     I would be interested in the Model 61 takedown manual if you come to a price..  I have no idea..