the names “1914”/“1924” are marketing: a specimen may be from 1919
Marks that can be entered for this maker: Model, type or typology, Date code (letter + quarter), Model, type or typology.
Nothing predates 1914; components only push the date later.
Sold-price aggregates are not collected yet, so the archive gives no figure — condition, originality of the transformers and a documented recap move this model more than any list price.
Evidence: razors.page — patent archive · Shaving Universe