[1] Founded in 1921, it is a membership organisation which exists to represent the trade of glass painting and staining in Britain.
[2] The founding subscribers included John Hardman, Walter Tower (Kempe & Co), Arthur Powell (James Powell and Sons) and Thomas Grylls (Burlison & Grylls) and Percy Bacon.
[3] BSMGP activities include: lectures, conferences, exhibitions, forums, and guided walks.
[4] Additionally, it houses an extensive reference library, available to its members only.
The current president is Prince Richard, Duke of Gloucester.