“Although there may be some superficial similarity between (a) lending£10,000 for five years at a rate of interest of X% per annum on the terms that none of the interest amounting in all to£5,000 shall be payable until the principal becomes repayable and (b) buying a foreign 45 bill of exchange with a face value equivalent to£15,000 for a price 7 equivalent to£10,000 , the two transactions are … essentially different from each other in character”
“The true nature of the “discount” or the premium (as the case may be) is to be ascertained from all the circumstances of the case, and, apart 35 from any matter of law which may bear on the question (such as the interpretation of the contract), will fall to be determined as a matter of fact by the commissioners”