History: Ice forming on a 20-inch signal projector on the cruiser HMS Sheffield while escorting an Arctic convoy to Russia, December 1942 [800x587]

https://i.redd.it/1ccj4t2ndtx21.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/bnrg9e/ice_forming_on_a_20inch_signal_projector_on_the/?utm_source=ifttt