Help sought – Lancaster Bomber Control Wheel Chain??

Hi,
Help sought…
…2 cogs and a chain (please see picture – chain about 30 cm long when doubled over and cogs 5 cm-ish wide), allegedly from the Lancaster control wheel / column set up…

Whilst I am pretty certain this came from a Lancaster, I’m interested to know if this indeed could have come from the control wheel/column and, if not, where a chain of this size might have been located.

Thanks in advance…

David