Bernard Maybeck designed wooden furniture and medieval-style chandeliers for the 1906 store on Van Ness. These were moved to 239 Grant in 1909, and later to 239 Post in 1921. Maybeck also designed Gothic-inspired window screens for 239 Grant (you can see some of them at the top of the stairwell); those pieces were moved to 239 Post in 1921. Only one or two pieces were then moved to the modern Sutter & Stockton store in 1948.
The question is whether any of the furniture, chandeliers, or window screens have survived. Personally, I doubt it. I have not heard of anyone who claims to own them. Arts & Crafts was out of fashion in 1948 so it’s likely all those pieces were discarded. Of course, it’s possible some have survived but their owners no longer know their provenance.