Unidentified logo on silverware

[steve45jm]

These pictures are of silverware that may be American or Canadian, but I can find no information on the marks; J.S.Co., a logo that I can't make out and then the word Sterling.

Any information is appreciated.
Thanks,
Steve

[silvercrown]

Your "J" is actually an "I". The mark is that of International Silver Co. The maker's mark is a plumed knight's head overlaying a shield. Your pattern is 'Lenox", introduced in 1929.

Silvercrown