Why is there a 地 in (霉)旧地席的气味?

Question

From the second chapter in George Orwell's 1984, using the translations at Douban:

Original: The hallway smelt of boiled cabbage and old rag mats.
Translation 1: 门厅里有一股熬白菜和旧地席的气味
Translation 2: 一进门厅就闻到煮卷心菜和霉旧地席的气味

Question: Why is there a 地 in (霉)旧地席的气味?

It seems like it should be a 的, not a 地. My understanding is that (霉)旧 (old) is an adjective describing the noun 席 (mat), and thus it should be 的.

Answer 1

「地」 is not a particle here. The word for rag mats is translated as the two-character word 「地席」, literally mat (席) for the floor (地).

...舊地席的气味

...smelt (气味) of (的) ... old (舊) rag mats (地席).

Answer 2

地席 is a two character word meaning floor mat.

The 霉 in 霉旧地席 refers to the old mat being mouldy and/or having a musky smell.