Royal Ruby Square Cup
Anchorglass (Anchor Hocking) · Kitchenware > Glassware (Depression Era / Mid-Century)

Era / Decade
Late 1940s to 1950s; this specific square-top design was part of the 'Charm' line introduced in 1950.
Material
Royal Ruby Glass; a true red glass colored with copper or gold rather than a surface flash or stain.
Condition
Very Good; the glass appears vibrant with high clarity and no major chips or cracks visible. Some light shelf wear or 'straw marks' (factory cooling lines) are typical for this era.
Demand Level
Moderate; demand spikes significantly in November and December due to holiday decorating and tablescaping trends.
Resale Value
Estimated Resale Value
Low: $5.00 | Mid: $10.00 | High: $15.00 (per piece). If sold as a set with the mugs in the background, value increases significantly.
Estimated Retail Value
$8.00 - $12.00 per cup (original historic price was pennies; comparable modern boutique glassware retails around $15.00).
Comparable Sales
Recent eBay 'Sold' listings show individual Charm cups selling for $7-$12 plus shipping. Sets of 4 often realize $35-$45. Mugs (the taller items in your background) usually command a slightly higher premium of $12-$18 each.
Description
Authentic Anchor Hocking Royal Ruby glassware square-shaped tea/punch cup. Features a unique rounded-square rim characteristic of the 'Charm' pattern, a delicate applied handle, and a deep, rich translucent ruby red color. Measures approximately 2 inches tall and 3.5 inches wide.
Key Features
Highly collectible Mid-Century Modern (MCM) square silhouette; iconic 'Royal Ruby' colorway which is highly sought after by glass collectors, especially during the holiday season.
Authenticity Indicators
Anchor Hocking Royal Ruby is often unmarked (paper labels were used originally). Authenticity is confirmed by the specific 'Charm' square mold and the deep blood-red hue characteristic of their 1940s-50s production. Confidence: High.
Flaws to Note
Potential 'flea bites' (tiny nicks) along the square rim; check for dullness or 'dishwasher haze' which permanently ruins the value of vintage glass.
Selling Guide
Where to Sell
Etsy (best for vintage aesthetics), eBay (best for collectors seeking replacements), or Facebook Marketplace (if selling a large heavy set to avoid shipping risks).
Selling Tips
Backlight the item in photos to show the translucency of the red glass. Use keywords like 'MCM', 'Ruby Red Glass', 'Anchor Hocking Charm', and 'Holiday Table'. If you have the matching saucers, sell them as pairs to double the price.