What are the numbers on the bottom of a 1936 royal crown bottle mean?

The numbers on the bottom of a 1936 Royal Crown bottle typically indicate the mold number and the date of manufacture. The mold number helps identify the specific design used for that bottle, while the date code can provide insight into when it was produced. In many cases, these numbers are part of the glass manufacturing process, reflecting production techniques and quality control measures of the time. Collectors often use this information to verify authenticity and assess the bottle's historical context.