This bronze Buddha is depicted in a meditative pose.

 

In his right hand, he holds a small conical object. This figure might represent Phra Bhaisajyaguru Vaitoonprapha, the Buddha associated with healing and medicine. 

Reference: Bangkok National Museum

https://www.finearts.go.th/mahavirawongmuseum/view/12471--Phra-Bhaisajyaguru-Vaitoonprapha--Medicine-Buddha--