This book contains the following:
<ol><li>A preface by Phra Sophon-aksonkit (Lek Samitasiri), owner of Sophon Phiphat Thanakon Printing House, and Nai Hokseng Chuengyaempin, dated 1 November 2478 BE (1935 CE).</li>
<li>An introduction by <a href="https://en.wikipedia.org/wiki/Phraya_Anuman_Rajadhon" class="extiw" title="w:Phraya Anuman Rajadhon">Phraya Anumanratchathon (Yong Sathiankoset)</a> and Phra Phinitwannakan (Saeng Salitun), dated 28 October 2478 BE (1935 CE).</li>
<li><i>Pathommasomphothikatha</i> (Pali: Pathamasambodhi-kathā; "Story of the First Enlightenment"), a (fictionalised?) biography of <a href="https://en.wikipedia.org/wiki/Gautama_Buddha" class="extiw" title="w:Gautama Buddha">Gautama Buddha</a>, originally written by an unknown person, revised by Prince <a href="https://en.wikipedia.org/wiki/Paramanuchitchinorot" class="extiw" title="w:Paramanuchitchinorot">Paramanuchitchinorot</a> of Siam by virtue of a royal decree of King <a href="https://en.wikipedia.org/wiki/Nangklao" class="extiw" title="w:Nangklao">Nangklao</a> dated Sunday, the 1st day of the waning moon of the 11st month, 2388 BE (1845 CE). The revision was started in the 2nd month of the year 2388 BE (1845/46 CE) and was finished in the 7th month of the following year. This revised version was first printed in the year 117 RE (2441 BE, 1898/99 CE) by Watcharin Printing House of Prince Watcharin of Siam.</li></ol><p><u>Notes</u>:
</p>
<ol><li>BE stands for Buddhist Era; CE, Common Era; and RE, Rattanakosin Era.</li>
<li>"Month" above refers to a month under the <a href="https://en.wikipedia.org/wiki/Thai_lunar_calendar" class="extiw" title="w:Thai lunar calendar">Thai lunar calendar</a>.</li></ol>
<bdi><a href="https://en.wikipedia.org/wiki/en:Paramanuchitchinorot" class="extiw" title="w:en:Paramanuchitchinorot"><span title="Siamese prince">Paramanuchitchinorot</span></a>
</bdi>
ปรมานุชิตชิโนรส, สมเด็จพระมหาสมณเจ้า กรมพระ. (๒๔๗๘). <i>ปฐมสมโพธิกถา</i>. พระนคร: โรงพิมพ์โสภณพิพรรฒธนากร. [พระโสภณอักษรกิจ (เล็ก สมิตะสิริ) กับนายฮกเส่ง จึงแย้มปิ่น พิมพ์ในงานปลงศพสนองคุณนางจันทร์ ฉิมไพบูลย์ ผู้เป็นน้าและป้า ณวัดจักรวรรดิ์ราชาวาส วันที่ ๒ ธันวาคม พ.ศ. ๒๔๗๘].