Missing Period After "B" Error


O.B. Elevations
1941 SEPTEMBER 30: LEYTE CIRCULATING
Mayor's Office official mail from LEYTE CITY to CAPOOCAN, franked with 4c x 3 mixed with 2c x 3 small COMMONWEALTH O.B. for 18c Single First Class Domestic Registered Rate, 20 grams maximum weight.

Routed via CALUBIHAN, LEYTE October 1. Backstamped destination, October 3. Marked in red RTS, dispatched October 7. Re-directed to TACLOBAN, backstamped on the same day. Endorsed on verso back to CALUBIHAN, finally received on November 7.