The government postal cards included a printed 1-cent stamp; the privately printed souvenir cards required a 2-cent adhesive postage stamp to be attached. The term Post Card was not widely used until the early 1900s (it was later contracted to "postcard" as a word-counting cost-saving measure). Government-issued cards were to be designated as Postal Cards (Staff, p. Writing was still not permitted on the address side.Messages were not permitted on the address side of the cards; after attempting various forms of explaining that regulation, the U. Post Office adopted the printed message that This side is for the address only (Staff, p. Other backs from this pioneer era of the American post card are known today as Souvenir Card and Mail Card. In this era, private citizens began to take black and white photographs and have them printed on paper with post card backs.The next card series began with either "A" or "R"* and were numbered from 1—124180.From 1908 until 1913 production dates are not clear and were determined by copyright dates found on a few of the cards. After 1913, dates began to appear occasionally in the order books kept by the company and from 1922 on, production dates were well documented.It is believed that in some cases the same view was ordered by another company and the card was printed with "A" or "R" preceding the number.A small number of cards also filed with this series begin with "BS," "DT," "RG," and "RT." After approximately 1924, the "A" or "R" may not appear on the card at all.
These numbers and dates should be used only as a guide.
After 1913, dates began to appear occasionally in the order books kept by the company, and from 1922 on, production dates were well documented.
The letter ‘A’ has been used as the standard.* There are a few hundred cards ordered by the Woolworth Company that begin with a 'W' instead of the more typical 'A' or 'R'.
(This is mainly found with the very early Teich postcards and with V.0.
Hammon postcards.) *There are a few hundred cards ordered by the Woolworth company that begin with a "W" instead of the more typical "A" or "R".