From basic research these were from the October/November 1940 charity drive. A torpedo. They appear to be made from zinc. The pin for the grenade badge is loose and falls out but can be easily slotted back into position.
4 Original German Winterhilfswerk Des Deutschen Volkes 1938 - 39 Postcards Rare
2 Original 1936 - 1937 German Winterhilfswerk Des Deutschen Volkes Postcards
ORIGINAL WW2 GERMAN WHW WINTERHIFSWERK, TINNIE DONATION BADGE Z12
Original German 1930s 1940s Winterhilfswerk Des Deutschen Volkes Donation Tokens
4 Original German 1942 Charity Winterhilfswerk Fundraising Postcards Genuine WW2
3 x Original 1940s German Charity Winterhilfswerk Fundraising Miniature Books