There is a notable inconsistency in Robert M. Gibbs excellent book on the G.R.I. stamps.

On page 150 he states (correctly) that the Lome Post Office was first re-opened on September 17th and closed after a few hours upon intervention from Accra (p.149).

He then states that it was re-opened on September 24th and that this is the first day of issue (p. 150).

He then goes on to quote Ewings that on September 22nd the months slug was inverted so that it reads 22/6/14 a date when the P.O. was supposed to be closed. 

The cover offered here shows this inverted date and is signed by Peter Holcombe who notes the inversion (lower left corner). See attached certificate.

I personally believe that the P.O. was not available to the General Public until October 1st (when the 1/2d and 1 d overprints first went on sale), but that certain privileged persons had access to the P.O. between September 17th and September 30th (which explains why many of the great rarities including the 2, 3 and 5 mark values were postmarked during this period)

On the back of the cover is the official seal of the Governor of the Gold Coast which supports my contention that the sender was a high ranking official.

A scarce and fascinating Postal History item.

The certificate is for the 5 Pfg., but applies equally to the other values. As far as I know, only one complete set was used. Covers from 5 Pf to 80 Pf exist (Koehler auction house had all of them). The Mark values were either cancelled individually or taken off cover. The one here is ex Koehler.