From a reader: On today's page of 2bangkok.com there is a picture of an old prang
Past Thailand: "Near Chao Phraya Bridge - 2-22-1959"
You were asking about the location of tis prang?
It belongs to Wat Rajaburana, which is next to Phra Puttha Yodfa
Bridge over the Chao Phraya.
On the bottom of my humble (German) page about "Virtual Rattanakosin
Walks" I put a quite recent photo of the same prang: