Noveau, Deco, French? other furniture info. J.N. Slack & Co.

Any one recognize these? :) Not looking for value as they are in need of some restoration, more wondering if any of the knowledgeable folks here have any historical or other details on the design and or maker (listed below) that are known?
I didn't find much of anything with basic online searching. These pieces were in my great-aunts home circa 1920s, not sure if they were new then or not. I have had them quite a while now and curious what they might be if any one has info on these designs or maker.

Makers metal tag attached: "An Heirloom of Tomorrow Designed and Handcrafted by J.N. Slack & Company, Fifth Avenue, New York"

Armoire is 38wx23dx50h, 7 drawers, 6 internal. The dresser (commode?) is 3 drawers, 2 pocket drawers, 2 side doors. 50wx24dx35h. Painted floral designs on the front, marble tops.

Thank you for any thoughts or information!
Dee

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