In the extract below you will see (at the end in bold) the relevant value of the Durban Club 6d to the Griquatown silver IIIII and 10 pieces at an auction.
The reality is that two white metal Durban Club tokens nearly raised £10 while the Griquatown pieces raised less than this!
You will also note that the magazine also CORRECTLY refers to the Griquatown pieces as nothing more than TOKEN coins. (The reference to TOKEN is factually correct.)
This was before the fallacy of the Griquatown coins "circulating" was first raised by Parson in his 1927 booklet The coinage of Griqualand. It was Parson's book which has been parroted by reams of other authors of books on South African coins since 1927 - as demonstrated at this link. This has led to the lie about their role in numismatics in South Africa.
Scott Balson's research-based comments debunking Parsons can be seen at this link.
Here is the extract from the 1912 magazine:
The Connoisseur, An Illustrated Magazine For Collectors
Edited by J. T. Herbert Baily
Vol. XXXIV.
(SEPTEMBER DECEMBER, 1912)
LONDON
Published by OTTO LIMITED, at the Editorial and Advertisement Offices of The Connoisseur, at Hanover Buildings, 35-39, Maddox Street, W.
1912
Extract: on the 11th, 1 2th, and 13th of June, is particularly worthy of note. The collecttion was begun twenty-five years ago; and it included many rarities. Of the Isle of Man, the pattern penny of 1723, in silver, realised /S 5s. : the pattern halfpenny, en suite, £7 10s. ; a pattern penny, 1732, in copper, £9 10s. ; and a Peel Castle half-crown, 1811, £5 10s. A penny token of Jersey, 1513, brought £0 17s. 6d. ; a five-shilling token of Guernsey, ,£14. India was represented by a very rare rupee of 1672 from General Hyde's collection and the Montagu and Murdoch cabinets, which brought ,£23 ; a Bombay rupee, reading MONETA : bombaiensis, .£14 10s. ; a half-rupee, similar, ,£ 10 ; and another rupee, reading MONETA, very fine, £6 10s. In the Bengal series the lots most worthy of note were a pattern rupee, 1784, from the Montagu and Murdoch collections, £7 5s. ; a mohur bearing the name of Alamgis II., £5 2s. 6d. ; a pattern Calcutta rupee, £5 12s. 6d. ; a Patna Post two annas, 1774, copper, £0 5s. ; a one- anna piece, similar, £6 5s. A double mohur of William IV. went for £6; a portcullis-piece of eight reals, of Queen Elizabeth (one of the best specimens known), .£14; four reals, £8 5s. ; two reals, £2 lis. (very poor one side); one real, ,£5 5s. A rupee of Pulu Penang, 1788, brought ,£7 17s. 6d., and a half- rupee, similar, £6 17s. 6d. Rupees of Java under the English occupation, in gold, of 1S14, 1815, and 1816, went for ,£8 10s., £9 10s., and £9 15s. respectively. A pattern dollar for Hong Kong struck in copper fell at ,£9 5s., and a Shanghai pattern tael at £7 2s. 6d. Two Durban club sixpenny tokens, 1860, in white metal, reached the high figure of £9 17s. 6d. The Griqua- town tenpenny and fivepenny tokens, silver, were bid up to £7 12s. 6d. and £1 10s. respectively.