Radio Room Clock 10A/17944

A6 inch dial clock arrived this morning – I had assumed RN but the code on the side is 10A for Misc Radio Equipment.

The dial has 10/44 on the back for Oct 44 and the case has crows foot with Ref No. 10A/17944

I can’t find any other references to this stores number. Anyone else come across it ?

It has a slipping main spring arbor – so into the cleaning fluid overnight.

The back has some indistinct paint and crayon markings