Malaysia - Medicinal Plants - Maxicards

I really like this set of maxicards of medicinal plants in Malaysia. The stamps are cancelled at Tawau Post Office, Sabah on Borneo Island. Bought it from an online dealer. It is probably the furthest town in Malaysia, almost 2,000 km east of Penang island.

I also bought another attractive set of maxicards of medicinal plants from another dealer with cancellations done at Taman Chai Leng Post Office, Penang mainland.