The first one looks like it says it is a shilling from 1745, but is 1.1 grams, extremely thin, and tests as about 20% Silver and 80% Copper in my X-Ray Spectrometer. The second is a copper coin from 1750. It weighs 4 grams. Thanks in advance.
The top coin appears to be a 1 Shilling coin produced by the Swiss Canton of Zurich. https://en.numista.com/catalogue/pieces23098.html