Except postcards, all stamps with Arabic letters were removed from circulation after May 1, 1934. The last series of stamps published with Arabic letters was the three stamp series from 1929, on which Latin letters and values ​​were surcharged.

The first series in which the new Turkish alphabet was used is the 3rd London series, which went on the market in 1926. If we consider that the letter revolution which adopted Latin letters instead of Arabic was accepted into law on November 1, 1928, within three years, all Arabic letters were removed from new stamps and within 6 years the old stamps were completely removed from circulation.

1926 - 3rd London series - first series with Latin alphabet for Turkish language 

November 1, 1928 - Law changing Turkish alphabet from Arabic to Latin

1929 - Last series of stamps showing Arabic alphabet along with Latin for Turkish language

May 1, 1934 - All stamps with Arabic letters removed from circulation 

Thanks to Mr. Kamil Fatih Arlı, Mr. Hakan Yılmaz, Mr. Osman Leven Seral, Mr. Carl Catherman, the TRFILA forum and the Postman forum, a mystery that was haunting me for more than a year is solved. Couple of years ago I acquired this card because of the interesting cancellation on it. Soon after posting it on the TRFILA forum, I learned that postcard was prepared by M. Melissopoulos (his cachet is always on the postcard), a famous postcard trader from Constantinople. His "signature" was the special cancellation. After reviewing this cancellation Mr. Carl Catherman told me that a coin was used to create this cancellation. My interest was peaked; however, I could not find which coin was used even though I spent a lot of time going through many numismatic sites about Ottoman coinage.

Fruchtermann 1365

Recently, I saw a similar card posted by Mr. Hakan Yılmaz. Several posts later, I Iearned from Mr. Kamil Fatih Arlı that the "signature" cancellation was created using a copper 20 Para coin from Sultan Abdulmecid.

Many thanks to Mr. Arlı for providing the original picture.

20 Para

Uzay Togay. Starting this blog for anything and everything about Ottoman and Turkish Philately.