One of those abundant flight covers with the Tax handstamp. There is no indication that the ms 2d was paid. Perhaps they didn’t want to spoil a schoolboy’s hobby.

This was another of his ‘attempts’.

One more try – re-sized images one at a time.

Have re-sized images and trying again.

These are the images as they did not upload with my first reply.

Oops – forgot to add Roger Lee’s 2 items, so 5 items that I have recorded for 105A & 2 items for 105B & none for 105C .

It has been drawn to my attention by a knowledgeable and respected auctioneer, that the letters are actually R.M.S. Could it be something to do with the Royal Mail Steamers (Steamships/Ships) ? This is more promising.

It is a genuine handstamp on a 1933 OHMS cover from Samarai to Sydney. The Collector or Sub-Collector of Customs may also have been the Postmaster, especially at Daru. They were multi-tasked in those early days. Lee had to list the similar H.M. Customs Daru BNG handstamp because it was used to cancel some Queensland stamps. Please see attachments.

I think this card is ex Tom Belknap. Yep, Prestige Auction 113 lot 960 in 2005 and previously Christies Auction lot 846 in May 1991.

A 1906 1½d post card (type 2) to Switzerland with the “rather scarce” unframed cds of Samarai (Lee type 29).

One of the postal stationery cards with the Gira (Bogi) handstamp mentioned by Lee on page 27.

The attached covers are the latest two to be added to the list.
Number 16 from Cavendish Auctions in 2016 and number 17 from the Corbitts Auction in 2017.