Kitty Hawkins (Amy Beth Hayes) is holding two Penhaligon’s perfumes while chatting with her assistant Jessie (Sai Bennett).

Thanks to a larger shot, we know that those are bottles of Malabah, sitting on the glass counter next to Lily of the Valley and a factice bottle of English Fern.

Bottles of Lavandula and Orange Blossom can be seen, too.

Picking Penhaligon’s perfumes for this show is historically accurate, since Penhaligon’s was established in 1870. Some of the fragrances seen on Selfridge’s counters were launched way after the 1910s, though – Orange Blossom in 1976, Malabah in 2003 and Lavandula in 2004. On the other hand, Lily of the Valley was created in 1907, English Fern in 1910, so they could be actually sold in the Oxford Street department store.