Sky line I was referring too is the one with the word SKY & a line drawn on back of the chip with a Flamingo bird like a Bugsy. (early cirles mold). I remebered your arrowdie as well. Since on the subject. Years ago I got a chip from one of the "old timers" Bill Paine. Skyline, blue $1, diamond mold. He said it is the old Henderson club. Just like the ones that have been run on ebay lately with the $5 & $25. About 5 years ago I got 5 of the $25's from a guy in Reno area. Now the rest of the story: "hoard" ? Hope not, but you know how it happens with Reno area finds, 99% of the time! I will have another hoard to possibly report too soon.