Posted By:
Dan Mathewson...lits it as a 1917 Youth Companion Stamp, but says the date is speculative. Apparently, SGC has better information making it a 1915 issue.
They say it is also speculated that the image is Babe Ruth (and SCD lists his name parenthetically). It is speculated thus because the ball player on the stamp is left-handed and is "...depicted in very Red Sox-like uniform..."
That also may not be true, if their unforms were not of that color (according to earlier posts in this thread). The rest of the stamps, according to SCD, are just general images "part of a set which featured other sporting activities, hobbys and topics suitable for young readers."
It could be deduced, equally so, that all the stamps were simply of hobbys and topics suitable for young readers and just because this player (not necessarily a pitcher) was throwing with his left hand, does not mean he was being illustrated as a Red Sox pitcher named Babe Ruth (especially if it isn't their proper uniform representation). It could be just a general baseball stamp, as apparently all of the stamps of that issue were general in nature.