This particular doostop sold for $1.25 in 1927.
A typical sales method of some foundries was to advertise in general merchandise catalogs.
Bradley & Hubbard even had a showroom in New York City.
Bulter Brothers on Broadway of New York City sold general merchandise thru their catalog.
In this catalog, this doorstop was advertised.
To See a catalog page 135 from their December 1927 Catalog -- Click on Picture Ad1 on left side
To See this doorstop on that page -- Click on Picture Ad2 on left side