Probably a decorating company.
One candidate could be Metropolitan Crystal Glass Works Ltd. Est 1955.
Factory 34a Potters Lane, Holland Park, London W11
Offices 45 Kensington Garden Sq, W2
Director H J Engell, sales D J Haynes
Boxed Glassware for presentations, Carafes, Celeries, Cocktail Sets, Decanters, Tableware etc.
data 1961 PG