These 36 1960 Topps Baseball 2nd Series cello packs, encapsulated by GAI, were offered for sale together back in 2004.
They were described as originating from the 1960 cello box find by “Mr. Mint” more than a decade earlier. The consignor purchased these packs directly from Rosen.
The 2nd Series numbers in 1960 ran from 111 to 198, including #’s 136 Kaat, 148 Yastrzemski, and 160 Mantle/Boyer.
These days, PSA-slabbed 1960 Topps 2nd Series cello packs are ~$2k.