Marx Unknown Set#: Pt 3 R.R. Station and Billborad

This is the last of the Marx cardboard buildings I bought a month or so ago which belong to an unattributed set number. Along with the three buildings there was a billboard which is included here as well. They measure: 

R.R. Station; Walls 6" (15.2cm) W x 3" (7.6cm) D x 2/3/8" (6cm) H
                Including Roof: 7 3/4" (19.7cm) W 4 1/4" (10.8cm) D 3 3/4' (9.5cm) H

Billboard: 5 1/4" (13.3cm) W x 2 1/8" (5.4cm) H

Enjoy! Opa Fritz and Oma Bettina

Scans

Billboard Scan

I've included a scan of the type of bases used in Marx paper villages