I have:
1939 Kanemichi, full civil koshirae (leather missing)
No Date Kanesada, Showa stamped, full Type 98 except with Budo fuchi
ND Kanezane, Kokuin, Kikusui on blade, full civil w/leather
ND Kanemitsu, leafy Kiri on nakao, incomplete fittings - wood saya missing kagutogane, Army menugi
ND Mumei, possibly pre-WWII, full Type 98 except Budo tsuba
ND Yoshitsugu, full civil w/leather
Looks like I only have that 6, not 7. Two of them were the same sword.
Most seem to be WWII era blades, however the majority, 4 of 6, were fully civilian fitted before their impression into service.
Another thought - These "Gunzoku" tsuba seem to be more mass produced than your run of the mill civil tsuba, simply based upon the fact that we see "many" of them compared to the purely civil tsuba that we see on civil swords fitted for the war, which are individualistic and random. What does that mean? I guess we are guessing (beside Ohmura's page).
Another thought - If I were a regular IJA officer, would I buy a sword with a "civil" tsuba or one with an army tsuba?
Just brain-storming here.