4.1 Price — The total price for the work specified in Article 3 shall be ______________ United States Dollars (U. S.$).
[Note that this is a lump sum clause. Depending on the circumstances, it may be appropriate to have a separate price (i. e., equipment vs. labour price), estimated prices, bonus charges, a currency clause linking the price to the exchange rate, price escalation provision or hardship clause which specifies the maximum amount of price escalation which permits the Seller to renegotiate or terminate the contract.]