D Series Handbrake lever assembly. This is air-assisted which is what I thought I remembered they were. With the air built up you should feel the lever getting a boost from the assistance valve as you pull it.
ebay.co.uk/itm/333628162353 … lsrc=aw.ds
This was the ratchet and chamber but I can’t recall if this is for an 0707 or a larger D series.