The box on the floor, behind the three near the window, had been one of these moved by the floor layers from the west wall to near the east side of the building in preparation for the laying of the floor.[C4-221] During the afternoon of November 22, Lieutenant Day of the Dallas police dusted this carton with powder and developed a palmprint on the top edge of the carton on the side nearest the window.[C4-222] The position of this palmprint on the carton was parallel with the long axis of the box, and at right angles with the short axis; the bottom of the palm rested on the box.[C4-223] Someone sitting on the box facing the window would have his palm in this position if he placed his hand alongside his right hip. (See Commission Exhibit No. 1302, p. 139.) This print which had been cut out of the box was also forwarded to the FBI and Latona identified it as Oswald’s right palmprint.[C4-224] In Latona’s opinion “not too long” a time had elapsed between the time that the print was placed on the carton and the time that it had been developed by the Dallas police.[C4-225] Although Bureau experiments had shown that 24 hours was a likely maximum time, Latona stated that he could only testify with certainty that the print was less than 3 days old.[C4-226] The print, therefore, could have been placed on the carton at any time within this period. The freshness of this print could be estimated only because the Dallas police developed it through the use of powder. Since cartons absorb perspiration, powder can successfully develop a print on such material[C4-227] only within a limited time. When the FBI in Washington received the cartons, the remaining prints, including Oswald’s on the Rolling Readers carton, were developed by chemical processes. The freshness of prints developed in this manner[C4-228] cannot be estimated, so no conclusions can be drawn as to whether these remaining prints preceded or followed the print developed in Dallas by powder. Most of the prints were found to have been placed on the cartons by an FBI clerk and a Dallas police officer after the cartons had been processed with powder by the Dallas Police.[C4-229] (See ch. VI, p. 249; app. X, p. 566.) In his independent investigation, Arthur Mandella of the New York City Police Department reached the same conclusion as Latona that the prints found on the cartons were those of Lee Harvey Oswald.[C4-229] In addition, Mandella was of the opinion that the print taken from the carton on the floor was probably made within a day or a day and a half of the examination on November 22.[C4-230] Moreover, another expert with the FBI, Ronald G. Wittmus, conducted a separate examination and also agreed with Latona that the prints were Oswald’s.[C4-231]