There are a couple of articles online which make reference to bartering done by English 'merchants' in the Gold Coast, in particular one Richard Miles. He apparently kept detailed records of his trades, one such involving "a roll of tobacco, two patches, twenty-four linen handkerchiefs, one gun, one jug, four pint mugs, and three garsets [textile measures]".
Another article states:
"Romauls were small pieces of East Indian cotton goods that varied bewilderingly in quality as well as in colour and pattern. Thus 'mixed romauls' constituted a mini-assortment in themselves. For instance, a box of 3000 [sic] mixed romauls shipped from England [to MIles] in 1795 comprised: 200 blue soot romauls, 200 brown Barragore romauls, 100 red Ashantee romauls, 700 hair romauls, 800 blue romauls, 800 fine blue romauls and 100 deep mixed romauls.
'Mixed patches', manufactured in England, varied in a similar fashion, but were more prosaically named: 'type no. 3', 'type no. 7' etc."