The collection of older ( more than 25 years) Thailand alcoholic beverage revenue stamps is very difficult and material is rare to very rare.
By law, alcohol revenues have to be glued to the bottle in such a way that it is difficult to remove the stamps and that they are broken when the cap of the bottle is taken off.
This to prevent re-use and recycling of such stamps.
In addition some 25 years ago, nobody really seriously collected such stamps and most of the stamps on the market are tattered and damaged, making for ugly looking collections.
In the past the Thai government would issue to the tax department of each of the about 50 provinces in Thailand a set of each newly issued stamp, hand-stamped "sample" as a reference. The provincial offices would glue them in a book when they arrived in the office. Most if not all of these sample books are lost and I have never seen any in my 25 years of collecting. Luckily last year on eBay
was for sale as single stamps, 93 issues of a December 1973 printing, still pristine, never glued in a book. I think these stamps originated from a government official who had taken a full set home. I never did see any of these 93 stamps before, and I was lucky to be able to win 44 of those stamps.
Each stamp has a handstamp in red, reading Sample in the Thai language.
I show 3 pages of these stamps. The first 2 pictures show yellow and blue large size (21x2,5 cm) stamps. These stamps are I think unique. They were used on bulk containers of imported alcohol.. They had to be affixed to the containers before leaving customs.
After arriving at the destination, these stamps had to be teared and pulled of the bulk containers and be traded in at the tax office for the proper quantity of so called "rebottled" stamps.
That means those large blue and yellow stamps do not exist in used form at all.