CH 1927 FS 11B-13B Swiss coat of arms and alpine roses, Fiber paper, no control no, set cancelled

Switzerland 1927 Franchise stamps,
Swiss coat of arms and alpine roses,
Fiber paper, no controll number,
3 values complete, set cancelled Bern
(SBK Portofreiheit 11B-13B, Michel 11IIx-12IIx).