1961 Topps #154 Bobby Del Greco PSA 8: precipitous fall in value over a year, and a couple days.
DATE PRICE GRADE LOT # AUCTION HOUSE AUCTION / SELLER TYPE CERT
9/22/2016 $154.00 8 311696846566 eBay gregmorriscards Auction 40047474
11/21/2016 $89.76 8 351903120366 eBay pwcc_auctions Auction 24049629
5/1/2017 $89.79 8 352035695122 eBay pwcc_auctions Auction 12407770
5/4/2017 $26.89 8 382061250079 eBay probstein123 Auction 06596169
This one is pretty crazy: #170 Al Smith PSA 8
DATE PRICE GRADE LOT # AUCTION HOUSE AUCTION / SELLER TYPE CERT
9/22/2016 $141.50 8 131937400559 eBay gregmorriscards Auction 11269444
11/20/2016 $89.88 8 381848301480 eBay just_collect Auction 11577913
11/21/2016 $282.00 8 142176823860 eBay pwcc_auctions Auction 50060813
5/1/2017 $28.89 8 401311694395 eBay pwcc_auctions Auction 12415269
7/17/2017 $79.77 8 372008949130 eBay probstein123 Auction 23179427
10/23/2017 $147.50 8 372103139291 eBay pristine_paper Auction 20042985
10/24/2017 $84.99 8 202085892637 eBay cooperstownsportscards Auction 22527516