[RICHARD]

I'm afraid that's not a registered letter. It is just addressed to the Registrar of a University. The "Reg" manuscript is likely just an internal reference to direct it to the Registrar's box.

The rate to the USA at the time was 2 1/2d, leaving a shortfall in postage of 1 1/2d. The exchange rate in 1907 was approximately £1 = US$4.80 or 2 cents per 1d (240d in the £). So the postage due represents "double the deficiency".

Roy

Thanks Im not into GB mail  to much. I just dabble in  it