Worth a read and perhaps better keyword searches within the museum and other UK museums might turn up something
Scroll down to "Crime and paranoia in London and India".
The the period model within the article shows the murders by strangulation and the grave being dug with the picks.
https://www.britishmuseum.org/exhibi...ting-histories
The model from 7 angles.
https://www.britishmuseum.org/collec..._As1847-0630-6
Links provided as I have not read the terms of use for images.
On Kali;
https://www.britishmuseum.org/exhibi...ution/timeline
Something I ponder within the notes from the museum is what Kali Symbolised post India conquest, being anti-colonial resistance.
Given the period and the "heyday" of the Thugee rising during colonial times.... Whilst only "opportunity" was targeted more than colonial occupation, does their cult and acts interplay with this resistance as much as what we already know from literature?
Not noted as Thugee but of the form in the engraving
https://www.britishmuseum.org/collec...ject/A_As-9661