N.B. Not all glass is by Nazeing, additional data to follow, please let us know if you can identify any.
Nazeing Glass #51 additional data to follow
Nazeing Glass #52 additional data to follow
Taller narrower swans in flint and pale colours are probably Whitefriars, but the shorter, broader four at the front (brighter, deeper colours) are not Whitefriars.
Quackers GMB posting