3. Edison phonographs or parts, records or blanks must not be disposed of as premiums, nor by lottery, raffle or any game of chance, nor in any other way whereby such articles would be acquired for less than full current list prices. Selling or offering for sale other goods at less than current prices, or the presenta- tion of such goods, or the use of trading stamps or the like, or the giving of premiums of any kind in order to induce the sale of Edison phonographs or parts, records or blanks, is considered equivalent to selling or offering same for sale, at less than the current list prices, and will not be allowed.
4. Exchanging or tendering Edison phonographs or parts, records or blanks, in whole or part payment for privileges of any character, or for advertising, or for goods of some other make or nature, or the exchange or acceptance of merchandise of other make or nature, in whole or part payment for Edison phonographs or parts, records or blanks, is not permitted. This does not prohibit the acceptance of a talking machine at full list price, if good as new, or less cost of repairs to make good as new, in exchange for an Edison phonograph sold- at full retail list price but does prohibit the acceptance of records or blanks of any kind, at any price, in exchange for Edison phonographs or parts, Edison records, or Edison blanks.
"5. Selling or offering for sale as second-hand articles, at reduced prices, Edison phonographs or parts, records or blanks, that have become shopworn or in any way damaged, or that have been taken in exchange, will be considered a cutting of prices and will not be allowed.
6. Exchange between dealers.-Authorized dealers, in case of emergency, will be allowed to borrow from any other authorized dealer, provided the goods SO borrowed are actually replaced with goods of the same style and make. In case a sale takes place between two retail dealers, it must be at the full list price and no discounts whatever can be allowed.
7. All Edison phonographs bear a serial number and the trade-mark, Thomas A. Edison, and dealers must keep a record of the serial numbers of all Edison phonographs sold by them,