Hand engraving work on slate marble. Calligraphy by Calligrapher Shah Mohammad Abdur Rahim, Bangladesh, this works in Dhaka, Bangladesh Calligraphy Institute. Dated 4 November 2024. The calligraphy style is Bahri alBangali alSultani Tugra. Text- Alsultan Almatahif Lutf Altahim Lultu fi Jasr Khalifatabad 1446 H. (calligrapher's signature) السلطان المتاحف لطف الرحيم لولتو في جسر خليفة اباد 1446ه