An unusual lovely old wrench with a lovely old machined grip and a push button, slide adjustment mechanism.
This wrench carries the markings 'The Crawford, Spanner Co, Banbury', 'Patent, Crawford, 19604-06' and 'Made By The London Small Arms Co Ltd'.
The button has what looks like a hand enscribed pattern.
This seems to be a very rare wrench.
Condition: when the bottom jaw is pushed to the very top it doesn't sit flush (the front drops a few mm), please see photos for condition.
