Historical information

Advertising posters for unbreakable condenser bobbins, produced by Hearl Heaton and Sons Ltd.

Inscriptions & markings

The New Patent / UNBREAKABLE / CONDENSER / BOBBIN / The Result of 100 Years' Experience. / Perfectly Simple! / Simply Perfect! / Over / Half-a-Million / in use. / Because it is the BEST / it costs a few pence / more than some others - / BUT it saves SHILL