The 752Ku used the unit marking "W2" on the tails of their "Betty" from May 1943 until the beginning of 1944. The letter "W" signified the 24th Koku Sentai while the letter "2" indicated that it was the second unit in the sentai. The unit was originally the 1Ku and changed its designation to 752Ku on November 1st, 1942.
On May 12, 1943 US Forces landed on the Aleutian island of Attu. The IJNAF immediately reacted by giving orders to the 752 and 801Ku to relocate to Paramushir island in the northern Kuril Islands. The very next day 21 "Betty" of the 752Ku took-off from Kisarazu base and landed in Paramushir with one bomber having to make a forced sea landing.
On May 23, 19 "Betty" raided the Attu locating an enemy cruiser and two destroyers but due to bad weather their bombing runs were not successful and what's worse one plane didn't manage to get back to the base.
On May 24, 17 planes took-off for a massive bombing mission but again due to bad weather missed their bombing point and instead encountered ten P38s. The planes immediately got rid of their bomb loads and in the ensuing aerial battle claimed no less than eight P38s shot down with two losses of their own. One more "Betty" had to ditch in the sea and the crew, minus three members, was rescued by the Submarine Chaser Kunashiri.
By the end of May the whole 752Ku, 45 planes in all, had moved to Paramushir but there wasn't much they could accomplish since the temperamental Aleutian weather hampered all operations.
In November the situation in southern Pacific was becoming critical so initially two chutai relocated to Chitose in Hokkaido and then to Rabaul.
The "Betty" featured in this series is "W2-365" with two white bands, possibly the plane of a chutai leader or an indication of different chutai (one band-1st chutai, two bands-2nd chutai etc). Other planes with their tail marking visible are "W2-306" and possibly "W2-332". Note the cut down rear gunner's position in the last still.
The exact date and location are unknown but our guess is either Paramushir or Chitose.