26 and 27. Compare with a related Beijing yellow glass bottle vase, incised Qianlong four-character mark and of the period, which was sold at Bonhams London, 6 November 2014, lot 146.

The color red has become synonymous with Coca-Cola — so why are loyal customers seeing bottles with a yellow cap in the spring? The yellow top indicates that the bottle is kosher for Passover ...

Today, bottles of Coca-Cola that are kosher for Passover have yellow caps instead of the traditional red ones. In addition to the yellow cap, the bottle has a Passover certification symbol.