How do I clean an antique glass bowl?

Wash the vessel gently in lukewarm water using mild detergent and a soft cloth. Avoid harsh scrubbing brushes or abrasive chemicals that can scratch the surface or damage applied enamels. Dry the item thoroughly with a lint-free towel to prevent water spots. Take particular care with pieces featuring metal rims or enamel painted highlights.

Are these bowls safe for serving food?

Many vintage bowls were intended for display or decorative utility rather than daily dining. Historic manufacturing methods can mean the glass is sensitive to thermal shock. Use them for dry items such as fruit or potpourri rather than hot foods or liquids. Inspect the interior for any roughness if intended for regular culinary use.

How can I identify genuine period glass?

Examine the base for signs of age, such as circular wear marks, maker signatures or registration numbers. Authentic interwar pieces exhibit the weight, mould seams and surface textures consistent with historical production methods. Compare the decorative motifs against known factory catalogues from the period. Genuine examples display the characteristic styling associated with the design eras represented here.

What is opalescent glass?

Opalescent glass is a semi-translucent material that scatters light to create a milky glow. It often shifts in colour from blue to amber depending on the angle of illumination. This optical effect was especially popular among interwar French and British glassmakers. It accentuates the raised details on moulded bowls and vases.