These envelopes have been produced by those wishing to commemorate a special occasion. Usually there is a related postmark.
75th Anniversary of the Boys' Brigade. One carries a commemorative postmark
New Zealand
4th October 1958
75th Anniversary of the Boys' Brigade. This also came with a commemorative sticker to seal the envelope.
The envelope contains a card with the BB Object & Motto, and contact details for the United Boys' Brigades of America.
USA
4th October 1958
50th Anniversary of the Blackpool Display
18th April 1970
Commemorating the 10th Ealing Company of the London District, Trooping the Colour in London
6th June 1970
75th Anniversary of Cardiff Battalion
An accompanying card gives a brief history of the Boys' Brigade in general and the Cardiff Battalion in particular. An insert gives a fuller history of Cardiff Battalion. The envelope and accompanying material was printed by the Senior Section of the 22nd Cardiff Company.
1st July 1970
Official Opening of Broomley Grange
Training, Camping & Conference Centre of North of England District
2nd July 1977
Commemorating the Boys' Brigade Council in Canterbury
13th September 1980
75th Anniversary Camp of Brighton & Hove Battalion at Lewes, East Sussex, UK
28th July 1983
Centenary of Cardiff District Battalion
A brief history of the Cardiff & Vale of Glamorgan Battalion is provided on the accompanying card.
1st July 1995
BB on Stamps