Radiosonde X1133172 recovered by Harri Pottsepp

Set of four. In the middle of a swampy forest. the bar was 7m high on a tree, unwinder jammed, string unrolled 6m only,all collected. 2/4 [via Radiosondy.info]
https://sondehub.org/X1133172 #radiosonde #sondeHub