1930 – M. Medis

12 July 2010

1930

647 56th Street

1929 – N. Lena

11 July 2010

1929bb

780 54th Street

1928 – J. B. Castellotti

10 July 2010

1928

761 54th Street

1928 – N. J. Lindstrom

9 July 2010

1928

5425 Dover Street

1923 – Oak. Concrete T&M Co.

8 July 2010

1923

739 55th Street

1905 – A. M. Hill & Company

7 July 2010

1905

713 54th Street

This is the same escutcheon used by Blake & Bilger.

T. A. Ryan

6 July 2010

ryan

Lakeshore Avenue behind 355 Wayne Avenue

I’ve always seen dated, text-only marks from T. A. Ryan before. Apparently he grew the business enough to become a more general contractor at some point.