Chest 44 to 46, long sleeves (27") and 38-42" waist. BIN seems reasonable for a 1920s tweed suit of such a large size.
http://www.ebay.co.uk/itm/Rare-Bespoke-d-1920s-Vintage-3-Piece-Check-Tweed-Suit-Button-Fly-Plus-Twos-/251269270990?pt=UK_Men_s_Vintage_Clothing&hash=item3a80d0cdce
http://www.ebay.co.uk/itm/Rare-Bespoke-d-1920s-Vintage-3-Piece-Check-Tweed-Suit-Button-Fly-Plus-Twos-/251269270990?pt=UK_Men_s_Vintage_Clothing&hash=item3a80d0cdce