This one offers a lot of (2) original Gilbert American Flyer mats for the 771/K771/23771 stock yard.  One is black and one is tan.  There are also two additional rubber feet in addition to the ones that are already attached to the two mats that attach the vibrating mechanism to the yard mats.  These are used but in nice shape.

TCA #97-45581.  Thanks for looking and please see my other listings for quality American Flyer items.  Questions please let me know.  I'm always happy to combine multiple purchases to save on shipping.  If you are combining multiple lots, please wait for me to send you an invoice via eBay which will reflect combined shipping costs.  Payment appreciated within 3 days of auctions end.  Be assured that this will be packaged properly for shipment.  Internal reference SRT26517.