This large Santa Fe Chief poster
stamp features a poster from the Santa Fe Railroad's "The
Chief is Still Chief" series. The stamp was printed on gummed
paper and pin-perforated by
The Olathe Poste (Olathe,
Colorado).
The above image is an enlargement (125%);
the actual size of this poster stamp is 54mm x 38.5mm (2.13" x
1.52").