Retro BT oldskool font

This one has bugged me for years. I've seen it applied elsewhere but never found out the name of the font.

Could someone tell me what the font used is for the "Phone bill" text on this page.

Century Oldstyle

Still in use of course on the majority of phone boxes across the country, even though the current branding has been in use for eleven years now.

It's a custom typeface I believe, BT Agency, though Century Oldstyle does look very similar!

Thanks everyone. Century Oldstyle looks so identical I might just use it.

Much appreciated