Chiefs 1944, series, stamp 341c - guaranteed by M. Miszczak and attestation and description of the entire series by J. Walocha. Fi 339, 340b, 341c. All philatelic values can be viewed in our office in Warsaw, 7/19 Romualda Mielczarskiego St. Mon-Fri 8:30-16:30. To facilitate the presentation, please contact us in advance by phone at: 691-666-727