The postcard above is titled “I Send My Love by Mail.” It is a Valentine postcard with an illustration by artist Katharine Gassaway, copyright 1906. Katharine Gassaway’s art appeared in books and on postcards by several publishers. This postcard is by an unknown publisher.
Below is a wooden postcard that is one of several instances I have seen in which an illustration used on a paper postcard was adapted for use on a wooden postcard. The wooden card appears to be one on which the design was printed on the wood and burned by a home woodburning hobbyist. Printing can be seen on the back. Sometimes the back was also burned on this type of card, but in this case the postcard markings have not been burned. The postcard logo is distinctive, but unidentified.