On the other hand, it was early held that the rule laid down in the Robbins case did not prevent a State from taxing a resident citizen who engaged in a general commission business, on the profits thereof, although the business consisted "for the time being, wholly or partially in negotiating sales between resident and nonresident merchants, of goods situated in another State."[589] Also, it has been held that a stamp tax on transfers of corporate stock, as applied to a sale between two nonresidents, of the stock of foreign railway corporations, was not an interference with interstate commerce.[590] Likewise, the business of taking orders on commission for the purchase and sale of grain and cotton for future delivery not necessitating interstate shipment was ruled not to be interstate commerce, and as such exempt from taxation, although deliveries were sometimes made by interstate shipment.[591] And in Banker Bros. Co. _v._ Pennsylvania[592] it was held that a tax upon a domestic corporation selling automobiles built by a foreign corporation under an arrangement by which the latter agreed to build for and sell to the former, for cash, at a specified price less than list price, was not a tax on interstate transactions, there being nothing which connected the ultimate buyer with the manufacturer but a warranty and the buyer's agreement to pay the list price f.o.b. factory. Similarly, in Browning _v._ Waycross[593] it was held that the business of erecting lightning rods within the limits of a town by the agent of a nonresident manufacturer on whose behalf such agent had solicited orders for the sale of the rods, and from whom he had received them when shipped into the State, was validly subjected to a municipal license tax. "It was not," said the Court, "within the power of the parties by the form of their contract to convert what was exclusively a local business, * * *, into an interstate commerce business * * *"[594] Also, a municipal license tax upon persons engaged in the business of buying or selling cotton for themselves was found not to impose a forbidden burden upon interstate commerce even though the cotton was purchased with a view to ultimate shipment in some other State or country.[595] Nor was a gallonage tax imposed by a State upon a distributor of liquid fuel rendered repugnant to the commerce clause by the fact that the distributor caused fuel sold to customers in the State to be shipped from another State for delivery in tank cars--"deemed original packages"--on purchaser's siding, as agreed. Said the Court: "The contracts were executory and related to unascertained goods. * * * It does not appear that when they were made appellant had any fuels of the kinds covered, or that those to be delivered were then in existence. There was no selection of goods by purchasers. Appellant was not required by the contracts to obtain the fuels at Wilmington but was free to effect performance by shipping from, any place within or without