Encircled Negative Star Cancels on Block of 30

The Largest Used Multiple
1935 AUGUST 3:
MANILA to SANTIAGO, ISABELA

2c Rizal O.B. on unsealed Department of Agriculture & Commerce envelope paying for the Single Third Class Circular Rate,
60 grams maximum weight.

Backstamped August 10.
Returned to sender October 21,
dispatch postmark on front.