INCOMMING MAIL Poland 50 F green eagle with lictors' bundles postage stamps issue 1919, 2 Mark gray green eagle in the oval postage stamps issue 1921, 10 Mark blue slate Sower postage stamps issue 1921, 50 Mark dark red / chamois eagle in the oval vertical strip of three postage stamps issue 1921 on registered letter from Zawiercie to Bytom ( = Beuthen), ZKr ZAWIERCIE 5.10.1921 * * *, you would note also the provisionally registered cancel as well the blue donation stamp "a hundred years Polish guard in Cracow 1813-1913 / Jozef Poniatowski"