2024年10月25日 · The "W. W. C. Co." trademark in the attached picture, I assume, is Wadsworth Watch Case Co. However, I have been unable to find any Encyclopedia, Jeweler's of the …

2009年4月30日 · The Elgin National Watch Co. was the largest American watch company in terms of jeweled movements produced, over 50,000,000 in its approximately 100 years of …

2009年5月3日 · Keystone was not absorbed by E. Howard, rather the Keystone WCCo bought the rights to use the Howard name and made what are known to collectors as Keystone Howard …