Provincial seal stamp series, 4th part

The 4th series of the stamps featuring the provincial seals is out since September already, and now the First Day Cover blog has featured the envelopes.

• Posting 1: Phuket, Maha Sarakham, Mukdahan, Mae Hong Son, Yasothon
• Posting 2: Yala, Roi Et, Ranong, Rayong, Ratchaburi

As I will buy this stamps in my next trip, the one depicted above showing the seal of Nakhon Si Thammarat is from an earlier series.