When Susie (Alex Borstein) goes to B. Altman to fetch Midge and take her to an evening gig, we can see a big factice bottle on a counter. Despite the hot pink liquid in it, the bottle is clearly recognizable: it’s Hermès Calèche sans the ribbon around the neck.
World Wide Aura 
I loved B Altman – went there on my first trip to New York. Had the most amazing marble bathrooms and deep carpets ! I think the building is a library now.
How lovely!