From 1911 to 1943 the Swiss Post issued some franchise stamps to support charity organizations like the Salvation Army. The overprinted numbers 146 and 369 were used for the Salvation Army. The 146 overprint was used from 1911 – 1925 and the 369 overprint was used from 1926 to 1943. (Source: Heilsarmee-Briefmarken). Here are these overprints shown on a nice private and four official Salvation Army covers in good condition. Very nice & rare items!!