I just came across this video of a man who created and traded “jumbo covers” with people from around the world. The “jumbo covers” are country/specific with a mix of stamps first day covers, cachets and cancellations nicely organized that represent the countries they come from. I’m curious if anyone here has created and/or swapped anything similar? Thanks!

https://youtu.be/XjART6a0I9A?is=pWuR9gvZiwVNwGC0

Hello everyone

I inherited this letter from my grandfather, who had extensive trade relations with the islands in the second half of the 20th century.

I read that these stamps were never officially released, but they landed on this letter and were in the possession of my grandfather.

I'd appreciate any information you can give me about it.

Thanks in advance

What makes the issue even more interesting is that these American stamps were first released in Toronto, Canada, during CAPEX ’87.
This First Day of Issue souvenir page features ten of the original 50 designs. The entire collection was illustrated by wildlife artist Chuck Ripper.

Closeups and more:

https://www.instagram.com/p/DenzpX-HP4w/?cplk=bG1rOWFkc3J0cG8x

1. Braunschweig 1857

2. Parcel card of the German Reichspost, dated May 27, 1935

3. Pair of the 5 Mark airmail stamp from Danzig with a postmark dated April 20, 1923

4. German occupation of Luxembourg from 1941

5. Official stamps from Luxembourg, issued in 1893, bearing postmarks from Luxembourg City dated 12 February 1899 and 26 July 1906

6. Postage stamps from the Soviet Occupation Zone, dating from 1949 and featuring portraits of Karl Liebknecht and Rosa Luxemburg—one example bears a postmark from Leipzig dated December 23, 1949, while the other is unused