Well, Speedster, I couldn't think of much "5" related to associate with the placement of this coin, so I've just put it back in circulation.
If I really wanted to stretch things, it is now in a cache not far from the fifth hole on a DiscGolf course. Also, I found it in my 25th cache find (five squared), and I dropped it off in my 28th find (5 x 5 + 5-2), so I guess there are a lot of fives, after all.
WMH