1939 (23 SE). Airmail cover from New York, United States to Mount Carmel. The cover was underfranked with 8 c. stamps and struck with "To Pay" postmarks in New York. Upon arrival in British Mandate Palestine, the cover was censored and hand-stamped with the local "To Pay 14mil" postmark, necessitating the affixing of additional postage due stamps and tied by the Mount Carmel 12 OCTOBER arrival circular date stamp (cds).

British Mandate Palestine 1926 - 1948 lot of 9 registered air mail envelopes. Each envelope features commercial advertisements from various companies and was dispatched to different countries worldwide 

First issue 1929 booklet, Bale A.1a, with minor imperfections: Out of seven pans of six stamps each, two pans exhibit faults: the 3m. pane is missing four out of six stamps, and in the last pane of the 5mil, two stamps are stuck onto the following advertisement pane. despite these imperfections, all advertisement pans remain intact without visible separation from the stamp panes. the booklet is secured with two staples on the right side and lacks advertisements on the back cover. with a catalog value of $3000, this booklet is considered very scarce.

First issue 1929, Cat Bale: A.3a, dummy booklet. The booklet contains all pans of advertisements and blank perforated panes. There are some separations of the leaves, and some of the blank stamp pages are stuck onto the advertisement pans. Catalog value $3,000. Very scarce.                                                               

Dummy booklets, produced without actual stamps but with interleaving, served as promotional tools distributed to advertisers, post offices, and other relevant entities. They are esteemed for their excellent condition and rarity, offering insight into historical advertising and distribution methods. Highly sought after by collectors, they hold significance in philatelic and postal history circles.